Pennsylvania pollen and allergy seasons
July outlookModerate
Pennsylvania has a spring tree season, grass in early summer, and a heavy ragweed season in the fall.
Twelve month pollen calendar
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LowModerateHighVery high
Dominant species in July
Grass
Typical peak in July
No clear peak this month
Worst month of the year
September
Best month of the year
January
What is active in July
Grass
Cities in Pennsylvania
| City | Today | Worst today | Typical in July |
|---|---|---|---|
| Pittsburgh | Very Highas of Jul 15 | Grass | Moderate |
| Scranton | Very Highas of Jul 15 | Grass | Moderate |
| State College | Very Highas of Jul 15 | Grass | Moderate |
| Lebanon | Very Highas of Jul 15 | Grass | Moderate |
| Levittown | Very Highas of Jul 15 | Grass | Moderate |
| Wilkes-Barre | Very Highas of Jul 15 | Grass | Moderate |
| Chester | Very Highas of Jul 15 | Grass | Moderate |
| Monroeville | Very Highas of Jul 15 | Grass | Moderate |
| Plum | Very Highas of Jul 15 | Grass | Moderate |
| Allison Park | Very Highas of Jul 15 | Grass | Moderate |
| Chambersburg | Very Highas of Jul 15 | Grass | Moderate |
| New Castle | Very Highas of Jul 15 | Grass | Moderate |
| Baldwin | Very Highas of Jul 15 | Grass | Moderate |
| West Chester | Very Highas of Jul 15 | Grass | Moderate |
| Lansdale | Very Highas of Jul 15 | Grass | Moderate |
| Johnstown | Very Highas of Jul 15 | Grass | Moderate |
| Colonial Park | Very Highas of Jul 15 | Grass | Moderate |
| Fullerton | Very Highas of Jul 15 | Grass | Moderate |
| Hermitage | Very Highas of Jul 15 | Grass | Moderate |
| Weigelstown | Very Highas of Jul 15 | Grass | Moderate |
| Franklin Park | Very Highas of Jul 15 | Grass | Moderate |
| Greensburg | Very Highas of Jul 15 | Grass | Moderate |
| Indiana | Very Highas of Jul 15 | Grass | Moderate |
| Ardmore | Very Highas of Jul 15 | Grass | Moderate |
| Dunmore | Very Highas of Jul 15 | Grass | Moderate |
| Montgomeryville | Very Highas of Jul 15 | Grass | Moderate |
| Kingston | Very Highas of Jul 15 | Grass | Moderate |
| Butler | Very Highas of Jul 15 | Grass | Moderate |
| Sharon | Very Highas of Jul 15 | Grass | Moderate |
| Bloomsburg | Very Highas of Jul 15 | Grass | Moderate |
| St. Marys | Very Highas of Jul 15 | Grass | Moderate |
| Jefferson Hills | Very Highas of Jul 15 | Grass | Moderate |
| New Kensington | Very Highas of Jul 15 | Grass | Moderate |
| Elizabethtown | Very Highas of Jul 15 | Grass | Moderate |
| Emmaus | Very Highas of Jul 15 | Grass | Moderate |
| Wyomissing | Very Highas of Jul 15 | Grass | Moderate |
| Bechtelsville | Very Highas of Jul 15 | Grass | Moderate |
| Union City | Very Highas of Jul 15 | Grass | Moderate |
| Manheim | Very Highas of Jul 15 | Grass | Moderate |
| Kutztown | Very Highas of Jul 15 | Grass | Moderate |
| Bentley Creek | Very Highas of Jul 15 | Grass | Moderate |
| Whitehall | Very Highas of Jul 15 | Grass | Moderate |
| Saxonburg | Very Highas of Jul 15 | Grass | Moderate |
| Greenock | Very Highas of Jul 15 | Grass | Moderate |
| Dormont | Very Highas of Jul 15 | Grass | Moderate |
| Lakemont | Very Highas of Jul 15 | Grass | Moderate |
| Duke Center | Very Highas of Jul 15 | Grass | Moderate |
| Columbia | Very Highas of Jul 15 | Grass | Moderate |
| Nescopeck | Very Highas of Jul 15 | Grass | Moderate |
| Nazareth | Very Highas of Jul 15 | Grass | Moderate |
| Montrose | Very Highas of Jul 15 | Grass | Moderate |
| Philipsburg | Very Highas of Jul 15 | Grass | Moderate |
| Millville | Very Highas of Jul 15 | Grass | Moderate |
| Kunkletown | Very Highas of Jul 15 | Grass | Moderate |
| Saylorsburg | Very Highas of Jul 15 | Grass | Moderate |
| Luzerne | Very Highas of Jul 15 | Grass | Moderate |
| Somerset | Very Highas of Jul 15 | Grass | Moderate |
| Millrift | Very Highas of Jul 15 | Grass | Moderate |
| Port Trevorton | Very Highas of Jul 15 | Grass | Moderate |
| Harleysville | Very Highas of Jul 15 | Grass | Moderate |
| Chester Hill | Very Highas of Jul 15 | Grass | Moderate |
| Bethel | Very Highas of Jul 15 | Grass | Moderate |
| West Sunbury | Very Highas of Jul 15 | Grass | Moderate |
| Newton | Very Highas of Jul 15 | Grass | Moderate |
| Mackeyville | Very Highas of Jul 15 | Grass | Moderate |
| Shippensburg | Very Highas of Jul 15 | Grass | Moderate |
| Martinsburg | Very Highas of Jul 15 | Grass | Moderate |
| Wyndmoor | Very Highas of Jul 15 | Grass | Moderate |
| East Petersburg | Very Highas of Jul 15 | Grass | Moderate |
| Ross Common | Very Highas of Jul 15 | Grass | Moderate |
| Spring House | Very Highas of Jul 15 | Grass | Moderate |
| Lemont Furnace | Very Highas of Jul 15 | Grass | Moderate |
| Akron | Very Highas of Jul 15 | Grass | Moderate |
| Mohnton | Very Highas of Jul 15 | Grass | Moderate |
| Towanda | Very Highas of Jul 15 | Grass | Moderate |
| Dingmans Ferry | Very Highas of Jul 15 | Grass | Moderate |
| Nanticoke | Very Highas of Jul 15 | Grass | Moderate |
| Zelienople | Very Highas of Jul 15 | Grass | Moderate |
| Ambridge | Very Highas of Jul 15 | Grass | Moderate |
| Springfield | Very Highas of Jul 15 | Grass | Moderate |
| Berwyn | Very Highas of Jul 15 | Grass | Moderate |
| Downingtown | Very Highas of Jul 15 | Grass | Moderate |
| Southampton | Very Highas of Jul 15 | Grass | Moderate |
| Bath | Very Highas of Jul 15 | Grass | Moderate |
| Lewisberry | Very Highas of Jul 15 | Grass | Moderate |
| Canonsburg | Very Highas of Jul 15 | Grass | Moderate |
| Broomall | Very Highas of Jul 15 | Grass | Moderate |
| Furlong | Very Highas of Jul 15 | Grass | Moderate |
| Clairton | Very Highas of Jul 15 | Grass | Moderate |
| Jermyn | Very Highas of Jul 15 | Grass | Moderate |
| Fawn Grove | Very Highas of Jul 15 | Grass | Moderate |
| Duquesne | Very Highas of Jul 15 | Grass | Moderate |
| Selinsgrove | Very Highas of Jul 15 | Grass | Moderate |
| Tyrone | Very Highas of Jul 15 | Grass | Moderate |
| Radnor | Very Highas of Jul 15 | Grass | Moderate |
| Venetia | Very Highas of Jul 15 | Grass | Moderate |
| Blakeslee | Very Highas of Jul 15 | Grass | Moderate |
| Evans City | Very Highas of Jul 15 | Grass | Moderate |
| Camp Hill | Very Highas of Jul 15 | Grass | Moderate |
| Oakdale | Very Highas of Jul 15 | Grass | Moderate |
| Abington | Very Highas of Jul 15 | Grass | Moderate |
| Sadsburyville | Very Highas of Jul 15 | Grass | Moderate |
| Palmyra | Very Highas of Jul 15 | Grass | Moderate |
| Landenberg | Very Highas of Jul 15 | Grass | Moderate |
| Boyertown | Very Highas of Jul 15 | Grass | Moderate |
| Utica | Very Highas of Jul 15 | Grass | Moderate |
| Hatboro | Very Highas of Jul 15 | Grass | Moderate |
| Media | Very Highas of Jul 15 | Grass | Moderate |
| Chadds Ford | Very Highas of Jul 15 | Grass | Moderate |
| Coopersburg | Very Highas of Jul 15 | Grass | Moderate |
| Quakertown | Very Highas of Jul 15 | Grass | Moderate |
| Fort Washington | Very Highas of Jul 15 | Grass | Moderate |
| Leesport | Very Highas of Jul 15 | Grass | Moderate |
| Clifton Heights | Very Highas of Jul 15 | Grass | Moderate |
| Chalfont | Very Highas of Jul 15 | Grass | Moderate |
| Pequea | Very Highas of Jul 15 | Grass | Moderate |
| Mountville | Very Highas of Jul 15 | Grass | Moderate |
| Warrington | Very Highas of Jul 15 | Grass | Moderate |
| Schnecksville | Very Highas of Jul 15 | Grass | Moderate |
| Newtown | Very Highas of Jul 15 | Grass | Moderate |
| Equinunk | Very Highas of Jul 15 | Grass | Moderate |
| Collegeville | Very Highas of Jul 15 | Grass | Moderate |
| Narberth | Very Highas of Jul 15 | Grass | Moderate |
| Wexford | Very Highas of Jul 15 | Grass | Moderate |
| Belle Vernon | Very Highas of Jul 15 | Grass | Moderate |
| Chester Springs | Very Highas of Jul 15 | Grass | Moderate |
| Valley Forge | Very Highas of Jul 15 | Grass | Moderate |
| Elverson | Very Highas of Jul 15 | Grass | Moderate |
| Middletown | Very Highas of Jul 15 | Grass | Moderate |
| Cogan Station | Very Highas of Jul 15 | Grass | Moderate |
| Flinton | Very Highas of Jul 15 | Grass | Moderate |
| West Grove | Very Highas of Jul 15 | Grass | Moderate |
| Larksville | Very Highas of Jul 15 | Grass | Moderate |
| Clinton | Very Highas of Jul 15 | Grass | Moderate |
| Bristol | Very Highas of Jul 15 | Grass | Moderate |
| Lemoyne | Very Highas of Jul 15 | Grass | Moderate |
| Sayre | Very Highas of Jul 15 | Grass | Moderate |
| Gouldsboro | Very Highas of Jul 15 | Grass | Moderate |
| Lititz | Very Highas of Jul 15 | Grass | Moderate |
| Dallastown | Very Highas of Jul 15 | Grass | Moderate |
| Harborcreek | Very Highas of Jul 15 | Grass | Moderate |
| Denver | Very Highas of Jul 15 | Grass | Moderate |
| Delmont | Very Highas of Jul 15 | Grass | Moderate |
| Wynnewood | Very Highas of Jul 15 | Grass | Moderate |
| York Haven | Very Highas of Jul 15 | Grass | Moderate |
| Falls Creek | Very Highas of Jul 15 | Grass | Moderate |
| Phillipsburg | Very Highas of Jul 15 | Grass | Moderate |
| Langhorne | Very Highas of Jul 15 | Grass | Moderate |
| Fountain Hill | Very Highas of Jul 15 | Grass | Moderate |
| Quarryville | Very Highas of Jul 15 | Grass | Moderate |
| Bryn Mawr | Very Highas of Jul 15 | Grass | Moderate |
| Oil City | Very Highas of Jul 15 | Grass | Moderate |
| Littlestown | Very Highas of Jul 15 | Grass | Moderate |
| Sunbury | Very Highas of Jul 15 | Grass | Moderate |
| Schwenksville | Very Highas of Jul 15 | Grass | Moderate |
| Aston Mills | Very Highas of Jul 15 | Grass | Moderate |
| Mercer | Very Highas of Jul 15 | Grass | Moderate |
| Avondale | Very Highas of Jul 15 | Grass | Moderate |
| Chinchilla | Very Highas of Jul 15 | Grass | Moderate |
| Franklin | Very Highas of Jul 15 | Grass | Moderate |
| Tunkhannock | Very Highas of Jul 15 | Grass | Moderate |
| Mainland | Very Highas of Jul 15 | Grass | Moderate |
| Carnegie | Very Highas of Jul 15 | Grass | Moderate |
| Middleburg | Very Highas of Jul 15 | Grass | Moderate |
| Neffsville | Very Highas of Jul 15 | Grass | Moderate |
| Beaver Falls | Very Highas of Jul 15 | Grass | Moderate |
| Roscoe | Very Highas of Jul 15 | Grass | Moderate |
| Frederick | Very Highas of Jul 15 | Grass | Moderate |
| Gwynedd | Very Highas of Jul 15 | Grass | Moderate |
| Wyncote | Very Highas of Jul 15 | Grass | Moderate |
| Bridgeport | Very Highas of Jul 15 | Grass | Moderate |
| Shippenville | Very Highas of Jul 15 | Grass | Moderate |
| Millersville | Very Highas of Jul 15 | Grass | Moderate |
| Linglestown | Very Highas of Jul 15 | Grass | Moderate |
| Shartlesville | Very Highas of Jul 15 | Grass | Moderate |
| Milford | Very Highas of Jul 15 | Grass | Moderate |
| Hopewell | Very Highas of Jul 15 | Grass | Moderate |
| Honesdale | Very Highas of Jul 15 | Grass | Moderate |
| Lancaster | Highas of Jul 15 | Grass | Moderate |
| Reading | Highas of Jul 15 | Grass | Moderate |
| Erie | Highas of Jul 15 | Grass | Moderate |
| Drexel Hill | Highas of Jul 15 | Grass | Moderate |
| Easton | Highas of Jul 15 | Grass | Moderate |
| Pottstown | Highas of Jul 15 | Grass | Moderate |
| Phoenixville | Highas of Jul 15 | Grass | Moderate |
| Hershey | Highas of Jul 15 | Grass | Moderate |
| Wilkinsburg | Highas of Jul 15 | Grass | Moderate |
| Ephrata | Highas of Jul 15 | Grass | Moderate |
| Pottsville | Highas of Jul 15 | Grass | Moderate |
| Washington | Highas of Jul 15 | Grass | Moderate |
| Coatesville | Highas of Jul 15 | Grass | Moderate |
| Yeadon | Highas of Jul 15 | Grass | Moderate |
| Clarion | Highas of Jul 15 | Grass | Moderate |
| New Britain | Highas of Jul 15 | Grass | Moderate |
| Titusville | Highas of Jul 15 | Grass | Moderate |
| Parkville | Highas of Jul 15 | Grass | Moderate |
| Lionville | Highas of Jul 15 | Grass | Moderate |
| Coraopolis | Highas of Jul 15 | Grass | Moderate |
| Danville | Highas of Jul 15 | Grass | Moderate |
| Harrison City | Highas of Jul 15 | Grass | Moderate |
| Gwynedd Valley | Highas of Jul 15 | Grass | Moderate |
| Carmichaels | Highas of Jul 15 | Grass | Moderate |
| Leeper | Highas of Jul 15 | Grass | Moderate |
| Clearfield | Highas of Jul 15 | Grass | Moderate |
| Schuylkill Haven | Highas of Jul 15 | Grass | Moderate |
| New Hope | Highas of Jul 15 | Grass | Moderate |
| Saint Marys | Highas of Jul 15 | Grass | Moderate |
| Horsham | Highas of Jul 15 | Grass | Moderate |
| Forest City | Highas of Jul 15 | Grass | Moderate |
| Peckville | Highas of Jul 15 | Grass | Moderate |
| Julian | Highas of Jul 15 | Grass | Moderate |
| Plymouth | Highas of Jul 15 | Grass | Moderate |
| Factoryville | Highas of Jul 15 | Grass | Moderate |
| Gettysburg | Highas of Jul 15 | Grass | Moderate |
| Bala Cynwyd | Highas of Jul 15 | Grass | Moderate |
| Greencastle | Highas of Jul 15 | Grass | Moderate |
| Feasterville Trevose | Highas of Jul 15 | Grass | Moderate |
| Highspire | Highas of Jul 15 | Grass | Moderate |
| Susquehanna | Highas of Jul 15 | Grass | Moderate |
| Wayne | Highas of Jul 15 | Grass | Moderate |
| Harmony | Highas of Jul 15 | Grass | Moderate |
| Freeport | Highas of Jul 15 | Grass | Moderate |
| Trafford | Highas of Jul 15 | Grass | Moderate |
| Clarks Summit | Highas of Jul 15 | Grass | Moderate |
| Washington Crossing | Highas of Jul 15 | Grass | Moderate |
| Bally | Highas of Jul 15 | Grass | Moderate |
| Telford | Highas of Jul 15 | Grass | Moderate |
| Elkins Park | Highas of Jul 15 | Grass | Moderate |
| Marcus Hook | Highas of Jul 15 | Grass | Moderate |
| Marysville | Highas of Jul 15 | Grass | Moderate |
| Stroudsburg | Highas of Jul 15 | Grass | Moderate |
| Macungie | Highas of Jul 15 | Grass | Moderate |
| Lake Ariel | Highas of Jul 15 | Grass | Moderate |
| Oley | Highas of Jul 15 | Grass | Moderate |
| Pennsylvania Furnace | Highas of Jul 15 | Grass | Moderate |
| Green Lane | Highas of Jul 15 | Grass | Moderate |
| Newtown Square | Highas of Jul 15 | Grass | Moderate |
| Swarthmore | Highas of Jul 15 | Grass | Moderate |
| Gap | Highas of Jul 15 | Grass | Moderate |
| Perkasie | Highas of Jul 15 | Grass | Moderate |
| Greentown | Highas of Jul 15 | Grass | Moderate |
| Glenshaw | Highas of Jul 15 | Grass | Moderate |
| Hinkletown | Highas of Jul 15 | Grass | Moderate |
| Gibsonia | Highas of Jul 15 | Grass | Moderate |
| Lafayette Hill | Highas of Jul 15 | Grass | Moderate |
| Mcmurray | Highas of Jul 15 | Grass | Moderate |
| Mc Donald | Highas of Jul 15 | Grass | Moderate |
| Penbrook | Highas of Jul 15 | Grass | Moderate |
| Plymouth Meeting | Highas of Jul 15 | Grass | Moderate |
| Irwin | Highas of Jul 15 | Grass | Moderate |
| Berwick | Highas of Jul 15 | Grass | Moderate |
| Woodbury | Highas of Jul 15 | Grass | Moderate |
| Hummels Wharf | Highas of Jul 15 | Grass | Moderate |
| Coudersport | Highas of Jul 15 | Grass | Moderate |
| Export | Highas of Jul 15 | Grass | Moderate |
| Knoxville | Highas of Jul 15 | Grass | Moderate |
| Lewistown | Highas of Jul 15 | Grass | Moderate |
| Tatamy | Highas of Jul 15 | Grass | Moderate |
| Center Valley | Highas of Jul 15 | Grass | Moderate |
| Leola | Highas of Jul 15 | Grass | Moderate |
| Uniontown | Highas of Jul 15 | Grass | Moderate |
| Lykens | Highas of Jul 15 | Grass | Moderate |
| Valencia | Highas of Jul 15 | Grass | Moderate |
| Monaca | Highas of Jul 15 | Grass | Moderate |
| Philadelphia | Moderateas of Jul 15 | Grass | Moderate |
| Allentown | Moderateas of Jul 15 | Grass | Moderate |
| Harrisburg | Moderateas of Jul 15 | Grass | Moderate |
| York | Moderateas of Jul 15 | Grass | Moderate |
| Bethlehem | Moderateas of Jul 15 | Grass | Moderate |
| Altoona | Moderateas of Jul 15 | Grass | Moderate |
| Bethel Park | Moderateas of Jul 15 | Grass | Moderate |
| Hazleton | Moderateas of Jul 15 | Grass | Moderate |
| Williamsport | Moderateas of Jul 15 | Grass | Moderate |
| Carlisle | Moderateas of Jul 15 | Grass | Moderate |
| Murrysville | Moderateas of Jul 15 | Grass | Moderate |
| West Mifflin | Moderateas of Jul 15 | Grass | Moderate |
| Mckeesport | Moderateas of Jul 15 | Grass | Moderate |
| Hanover | Moderateas of Jul 15 | Grass | Moderate |
| Willow Grove | Moderateas of Jul 15 | Grass | Moderate |
| Carnot-Moon | Moderateas of Jul 15 | Grass | Moderate |
| Mountain Top | Moderateas of Jul 15 | Grass | Moderate |
| Lower Burrell | Moderateas of Jul 15 | Grass | Moderate |
| Progress | Moderateas of Jul 15 | Grass | Moderate |
| Masontown | Moderateas of Jul 15 | Grass | Moderate |
| Tamaqua | Moderateas of Jul 15 | Grass | Moderate |
| Rochester | Moderateas of Jul 15 | Grass | Moderate |
| Mexico | Moderateas of Jul 15 | Grass | Moderate |
| Devon | Moderateas of Jul 15 | Grass | Moderate |
| Warren | Moderateas of Jul 15 | Grass | Moderate |
| Cresco | Moderateas of Jul 15 | Grass | Moderate |
| East Berlin | Moderateas of Jul 15 | Grass | Moderate |
| Enola | Moderateas of Jul 15 | Grass | Moderate |
| Mercersburg | Moderateas of Jul 15 | Grass | Moderate |
| Pocono Summit | Moderateas of Jul 15 | Grass | Moderate |
| Hellertown | Moderateas of Jul 15 | Grass | Moderate |
| Kingsley | Moderateas of Jul 15 | Grass | Moderate |
| Dillsburg | Moderateas of Jul 15 | Grass | Moderate |
| Mount Union | Moderateas of Jul 15 | Grass | Moderate |
| White Haven | Moderateas of Jul 15 | Grass | Moderate |
| Mansfield | Moderateas of Jul 15 | Grass | Moderate |
| Vandergrift | Moderateas of Jul 15 | Grass | Moderate |
| Norwood | Moderateas of Jul 15 | Grass | Moderate |
| Wellsboro | Moderateas of Jul 15 | Grass | Moderate |
| Mill Hall | Moderateas of Jul 15 | Grass | Moderate |
| Rutherford | Moderateas of Jul 15 | Grass | Moderate |
| Reedsville | Moderateas of Jul 15 | Grass | Moderate |
| Fleetwood | Moderateas of Jul 15 | Grass | Moderate |
| Pricedale | Moderateas of Jul 15 | Grass | Moderate |
| Conshohocken | Moderateas of Jul 15 | Grass | Moderate |
| Spring Grove | Moderateas of Jul 15 | Grass | Moderate |
| Morrisville | Moderateas of Jul 15 | Grass | Moderate |
| Oxford | Moderateas of Jul 15 | Grass | Moderate |
| Fountainville | Moderateas of Jul 15 | Grass | Moderate |
| Freeland | Moderateas of Jul 15 | Grass | Moderate |
| Oaks | Moderateas of Jul 15 | Grass | Moderate |
| Connellsville | Moderateas of Jul 15 | Grass | Moderate |
| Delta | Moderateas of Jul 15 | Grass | Moderate |
| Ashland | Moderateas of Jul 15 | Grass | Moderate |
| Mechanicsburg | Moderateas of Jul 15 | Grass | Moderate |
| Richboro | Moderateas of Jul 15 | Grass | Moderate |
| Monongahela | Moderateas of Jul 15 | Grass | Moderate |
| New Eagle | Moderateas of Jul 15 | Grass | Moderate |
| Northern Cambria | Moderateas of Jul 15 | Grass | Moderate |
| Benton | Moderateas of Jul 15 | Grass | Moderate |
| Flourtown | Moderateas of Jul 15 | Grass | Moderate |
| Annville | Moderateas of Jul 15 | Grass | Moderate |
| Dover | Moderateas of Jul 15 | Grass | Moderate |
| Waymart | Moderateas of Jul 15 | Grass | Moderate |
| Glassport | Moderateas of Jul 15 | Grass | Moderate |
| Paoli | Moderateas of Jul 15 | Grass | Moderate |
| Airville | Moderateas of Jul 15 | Grass | Moderate |
| Darby | Moderateas of Jul 15 | Grass | Moderate |
| Ridley Park | Moderateas of Jul 15 | Grass | Moderate |
| Beaver | Moderateas of Jul 15 | Grass | Moderate |
| Lansdowne | Moderateas of Jul 15 | Grass | Moderate |
| Perkiomenville | Moderateas of Jul 15 | Grass | Moderate |
| Millerstown | Moderateas of Jul 15 | Grass | Moderate |
| Warminster | Moderateas of Jul 15 | Grass | Moderate |
| Kittanning | Moderateas of Jul 15 | Grass | Moderate |
| Topton | Moderateas of Jul 15 | Grass | Moderate |
| Willow Street | Moderateas of Jul 15 | Grass | Moderate |
| New Holland | Moderateas of Jul 15 | Grass | Moderate |
| Hawley | Moderateas of Jul 15 | Grass | Moderate |
| Jamison | Moderateas of Jul 15 | Grass | Moderate |
| Effort | Moderateas of Jul 15 | Grass | Moderate |
| Doylestown | Moderateas of Jul 15 | Grass | Moderate |
| Hatfield | Moderateas of Jul 15 | Grass | Moderate |
| Pittston | Moderateas of Jul 15 | Grass | Moderate |
| Pipersville | Moderateas of Jul 15 | Grass | Moderate |
| Drums | Moderateas of Jul 15 | Grass | Moderate |
| Ambler | Moderateas of Jul 15 | Grass | Moderate |
| Newville | Moderateas of Jul 15 | Grass | Moderate |
| East Texas | Moderateas of Jul 15 | Grass | Moderate |
| Huntingdon Valley | Moderateas of Jul 15 | Grass | Moderate |
| Bellefonte | Moderateas of Jul 15 | Grass | Moderate |
| Glenside | Moderateas of Jul 15 | Grass | Moderate |
| East Earl | Moderateas of Jul 15 | Grass | Moderate |
| Sharon Hill | Moderateas of Jul 15 | Grass | Moderate |
| Hopeland | Moderateas of Jul 15 | Grass | Moderate |
| Muncy | Moderateas of Jul 15 | Grass | Moderate |
| Breinigsville | Moderateas of Jul 15 | Grass | Moderate |
| Palmerton | Moderateas of Jul 15 | Grass | Moderate |
| Reynoldsville | Moderateas of Jul 15 | Grass | Moderate |
| Aston | Moderateas of Jul 15 | Grass | Moderate |
| Malvern | Moderateas of Jul 15 | Grass | Moderate |
| Bentleyville | Moderateas of Jul 15 | Grass | Moderate |
| Charleroi | Moderateas of Jul 15 | Grass | Moderate |
| Hummelstown | Moderateas of Jul 15 | Grass | Moderate |
| Exton | Moderateas of Jul 15 | Grass | Moderate |
| Sewickley | Moderateas of Jul 15 | Grass | Moderate |
| Birdsboro | Moderateas of Jul 15 | Grass | Moderate |
| Zionsville | Moderateas of Jul 15 | Grass | Moderate |
| Honey Brook | Moderateas of Jul 15 | Grass | Moderate |
| Royersford | Moderateas of Jul 15 | Grass | Moderate |
| Wernersville | Moderateas of Jul 15 | Grass | Moderate |
| Bedford | Moderateas of Jul 15 | Grass | Moderate |
| Catasauqua | Moderateas of Jul 15 | Grass | Moderate |
| Camden | Moderateas of Jul 15 | Grass | Moderate |
| Freemansburg | Moderateas of Jul 15 | Grass | Moderate |
| Havertown | Moderateas of Jul 15 | Grass | Moderate |
| Blairsville | Moderateas of Jul 15 | Grass | Moderate |
| Mckees Rocks | Moderateas of Jul 15 | Grass | Moderate |
| Unityville | Moderateas of Jul 15 | Grass | Moderate |
| University Park | Moderateas of Jul 15 | Grass | Moderate |
| Albrightsville | Moderateas of Jul 15 | Grass | Moderate |
| Beech Creek | Moderateas of Jul 15 | Grass | Moderate |
| Sipesville | Moderateas of Jul 15 | Grass | Moderate |
| Latrobe | Moderateas of Jul 15 | Grass | Moderate |
| Huntingdon | Moderateas of Jul 15 | Grass | Moderate |
| Morton | Moderateas of Jul 15 | Grass | Moderate |
| Bensalem | Moderateas of Jul 15 | Grass | Moderate |
| Lake Naomi Estates | Moderateas of Jul 15 | Grass | Moderate |
| Northumberland | Moderateas of Jul 15 | Grass | Moderate |
| Homeacre | Moderateas of Jul 15 | Grass | Moderate |
| Mahanoy City | Moderateas of Jul 15 | Grass | Moderate |
| Nicetown | Moderateas of Jul 15 | Grass | Moderate |
| Lehighton | Moderateas of Jul 15 | Grass | Moderate |
| Meadville | Noneas of Jul 15 | None | Moderate |
| Conneaut Lake | Noneas of Jul 15 | None | Moderate |
| Edinboro | Noneas of Jul 15 | None | Moderate |
| Girard | Noneas of Jul 15 | None | Moderate |
| Cambridge Springs | Noneas of Jul 15 | None | Moderate |
| Norristown | No live reading | Not available | Moderate |
| King Of Prussia | No live reading | Not available | Moderate |
| Lyndora | No live reading | Not available | Moderate |
| Hollidaysburg | No live reading | Not available | Moderate |
| Cranberry Township | No live reading | Not available | Moderate |
| Lincoln University | No live reading | Not available | Moderate |
| Tioga | No live reading | Not available | Moderate |
| Fayetteville | No live reading | Not available | Moderate |
| Villanova | No live reading | Not available | Moderate |
| Lewisburg | No live reading | Not available | Moderate |
| Yardley | No live reading | Not available | Moderate |
| Spring City | No live reading | Not available | Moderate |
| Kennett Square | No live reading | Not available | Moderate |
| Waynesboro | No live reading | Not available | Moderate |
| Ligonier | No live reading | Not available | Moderate |
| Pennsburg | No live reading | Not available | Moderate |
| Wallingford | No live reading | Not available | Moderate |
| Red Lion | No live reading | Not available | Moderate |
| Brookhaven | No live reading | Not available | Moderate |
| North East | No live reading | Not available | Moderate |
| Slatington | No live reading | Not available | Moderate |
| Swiftwater | No live reading | Not available | Moderate |
| Landisville | No live reading | Not available | Moderate |
| Oreland | No live reading | Not available | Moderate |
| Jim Thorpe | No live reading | Not available | Moderate |
| Fairfield | No live reading | Not available | Moderate |
| Haverford | No live reading | Not available | Moderate |
| Mount Joy | No live reading | Not available | Moderate |
| Mars | No live reading | Not available | Moderate |
| Ivyland | No live reading | Not available | Moderate |
| Carbondale | No live reading | Not available | Moderate |
| Du Bois | No live reading | Not available | Moderate |
| Goshen | No live reading | Not available | Moderate |
| Duncansville | No live reading | Not available | Moderate |
| Roulette | No live reading | Not available | Moderate |
| Aldan | No live reading | Not available | Moderate |
| Eighty Four | No live reading | Not available | Moderate |
| West Newton | No live reading | Not available | Moderate |
| Hempfield | No live reading | Not available | Moderate |
| Garnet Valley | No live reading | Not available | Moderate |
| Stockdale | No live reading | Not available | Moderate |
| Bridgeville | No live reading | Not available | Moderate |
| Glen Mills | No live reading | Not available | Moderate |
| Blandon | No live reading | Not available | Moderate |
| North Wales | No live reading | Not available | Moderate |
| Dallas | No live reading | Not available | Moderate |
| Millersburg | No live reading | Not available | Moderate |
| Shohola | No live reading | Not available | Moderate |
| Kempton | No live reading | Not available | Moderate |
| Delano | No live reading | Not available | Moderate |
Today and worst today come from live readings where available. Typical shows the usual level for this month from the seasonal profile.
The Pennsylvania allergy season
Allergy levels in Pennsylvania peak in September, when ragweed pollen runs highest. The season moves through tree pollen around April, grass in June, weed pollen such as ragweed in September. Levels start to climb around March. The lowest pollen levels of the year arrive in January.
Common questions
When does allergy season start in Pennsylvania?
Pollen levels in Pennsylvania usually begin climbing in March and reach their highest point in September.
What is the worst month for allergies in Pennsylvania?
September is typically the worst month in Pennsylvania, driven by ragweed pollen.
When does ragweed season end in Pennsylvania?
Ragweed pollen in Pennsylvania usually fades by the end of October, after the first hard frost in colder areas.
When is the best time for allergies in Pennsylvania?
January usually brings the lowest pollen levels of the year in Pennsylvania.