Maine pollen and allergy seasons

July outlookHigh

Maine has a late compressed season, with tree pollen in spring, grass in early summer, and a lighter ragweed season than states to the south.

Twelve month pollen calendar

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LowModerateHighVery high

Dominant species in July

Grass

Typical peak in July

early-July to mid-July

Worst month of the year

May

Best month of the year

January

What is active in July

Grass

High

Cities in Maine

City	Today	Worst today	Typical in July
Portland	Very Highas of Jul 15	Grass	High
South Portland	Very Highas of Jul 15	Grass	High
Biddeford	Very Highas of Jul 15	Grass	High
Saco	Very Highas of Jul 15	Grass	High
Waterville	Very Highas of Jul 15	Grass	High
Berwick	Very Highas of Jul 15	Grass	High
Phippsburg	Very Highas of Jul 15	Grass	High
Lisbon	Very Highas of Jul 15	Grass	High
East Wilton	Very Highas of Jul 15	Grass	High
Cape Porpoise	Very Highas of Jul 15	Grass	High
York	Very Highas of Jul 15	Grass	High
Brunswick	Very Highas of Jul 15	Grass	High
Topsham	Very Highas of Jul 15	Grass	High
Limington	Very Highas of Jul 15	Grass	High
Cape Elizabeth	Very Highas of Jul 15	Grass	High
Livermore	Very Highas of Jul 15	Grass	High
Kittery Point	Very Highas of Jul 15	Grass	High
Gorham	Very Highas of Jul 15	Grass	High
Small Point	Very Highas of Jul 15	Grass	High
Acton	Very Highas of Jul 15	Grass	High
Newry	Very Highas of Jul 15	Grass	High
Buxton	Very Highas of Jul 15	Grass	High
Alfred	Very Highas of Jul 15	Grass	High
Springvale	Very Highas of Jul 15	Grass	High
Limerick	Very Highas of Jul 15	Grass	High
York Beach	Very Highas of Jul 15	Grass	High
Lubec	Very Highas of Jul 15	Grass	High
Wells	Very Highas of Jul 15	Grass	High
Kittery	Very Highas of Jul 15	Grass	High
Southwest Harbor	Very Highas of Jul 15	Grass	High
Porter	Very Highas of Jul 15	Grass	High
Norway	Very Highas of Jul 15	Grass	High
New Gloucester	Very Highas of Jul 15	Grass	High
Hallowell	Very Highas of Jul 15	Grass	High
Damariscotta	Very Highas of Jul 15	Grass	High
Arundel	Very Highas of Jul 15	Grass	High
Kennebunk	Very Highas of Jul 15	Grass	High
Roxbury	Very Highas of Jul 15	Grass	High
Old Orchard Beach	Very Highas of Jul 15	Grass	High
Pine Point	Very Highas of Jul 15	Grass	High
South Eliot	Very Highas of Jul 15	Grass	High
Eliot	Very Highas of Jul 15	Grass	High
Searsport	Highas of Jul 15	Grass	High
Whitefield	Highas of Jul 15	Grass	High
Brooksville	Highas of Jul 15	Grass	High
Garland	Highas of Jul 15	Grass	High
Pembroke	Highas of Jul 15	Grass	High
Northport	Highas of Jul 15	Grass	High
Vinalhaven	Highas of Jul 15	Grass	High
Milo	Highas of Jul 15	Grass	High
Belfast	Highas of Jul 15	Grass	High
South Thomaston	Highas of Jul 15	Grass	High
Camden	Highas of Jul 15	Grass	High
Waldoboro	Highas of Jul 15	Grass	High
Windham	Highas of Jul 15	Grass	High
Standish	Highas of Jul 15	Grass	High
Boothbay Harbor	Highas of Jul 15	Grass	High
Machias	Highas of Jul 15	Grass	High
Georgetown	Highas of Jul 15	Grass	High
Dover-Foxcroft	Highas of Jul 15	Grass	High
Ellsworth	Highas of Jul 15	Grass	High
Orono	Highas of Jul 15	Grass	High
Bremen	Highas of Jul 15	Grass	High
Mechanic Falls	Highas of Jul 15	Grass	High
Morrill	Highas of Jul 15	Grass	High
Blue Hill	Highas of Jul 15	Grass	High
Lewiston	Moderateas of Jul 15	Grass	High
Bangor	Moderateas of Jul 15	Grass	High
Sanford	Moderateas of Jul 15	Grass	High
Westbrook	Moderateas of Jul 15	Grass	High
Augusta	Moderateas of Jul 15	Grass	High
Unity	Moderateas of Jul 15	Grass	High
Jefferson	Moderateas of Jul 15	Grass	High
Freeport	Moderateas of Jul 15	Grass	High
Harpswell	Moderateas of Jul 15	Grass	High
Bethel	Moderateas of Jul 15	Grass	High
South Berwick	Moderateas of Jul 15	Grass	High
Bar Harbor	Moderateas of Jul 15	Grass	High
Kennebunkport	Moderateas of Jul 15	Grass	High
Lebanon	Moderateas of Jul 15	Grass	High
Ogunquit	Moderateas of Jul 15	Grass	High
Livermore Falls	Moderateas of Jul 15	Grass	High
Stockton Springs	Moderateas of Jul 15	Grass	High
Bath	Moderateas of Jul 15	Grass	High
Bridgton	Moderateas of Jul 15	Grass	High
South Casco	Moderateas of Jul 15	Grass	High
Cumberland Center	Moderateas of Jul 15	Grass	High
Newcastle	Moderateas of Jul 15	Grass	High
Chisholm	Moderateas of Jul 15	Grass	High
North Berwick	Moderateas of Jul 15	Grass	High
Yarmouth	Moderateas of Jul 15	Grass	High
Greenville	Moderateas of Jul 15	Grass	High
Island Falls	Moderateas of Jul 15	Grass	High
Bucksport	Moderateas of Jul 15	Grass	High
Patten	Moderateas of Jul 15	Grass	High
Greenwood	Moderateas of Jul 15	Grass	High
Auburn	No live reading	Not available	High
Surry	No live reading	Not available	High
Lincoln	No live reading	Not available	High
Poland	No live reading	Not available	High
Presque Isle	No live reading	Not available	High
Scarborough	No live reading	Not available	High
Oakfield	No live reading	Not available	High
Stonington	No live reading	Not available	High

Today and worst today come from live readings where available. Typical shows the usual level for this month from the seasonal profile.

The Maine allergy season

Allergy levels in Maine peak in May, when birch pollen runs highest. The season moves through tree pollen around May, grass in June, weed pollen such as ragweed in September. Levels start to climb around April. The lowest pollen levels of the year arrive in January.

Common questions

When does allergy season start in Maine?

Pollen levels in Maine usually begin climbing in April and reach their highest point in May.

What is the worst month for allergies in Maine?

May is typically the worst month in Maine, driven by birch pollen.

When does ragweed season end in Maine?

Ragweed pollen in Maine usually fades by the end of October, after the first hard frost in colder areas.

When is the best time for allergies in Maine?

January usually brings the lowest pollen levels of the year in Maine.