Rhode Island pollen and allergy seasons

July outlookModerate

Rhode Island has a spring tree season and a strong ragweed season in late summer and early fall.

Twelve month pollen calendar

J
F
M
A
M
J
J
A
S
O
N
D
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
Moderate

Cities in Rhode Island

CityTodayWorst todayTypical in July
WarwickVery Highas of Jul 15GrassModerate
North SmithfieldVery Highas of Jul 15GrassModerate
SmithfieldVery Highas of Jul 15GrassModerate
TivertonVery Highas of Jul 15GrassModerate
PawtucketHighas of Jul 15GrassModerate
ChepachetHighas of Jul 15GrassModerate
East GreenwichHighas of Jul 15GrassModerate
CumberlandHighas of Jul 15GrassModerate
ProvidenceModerateas of Jul 15GrassModerate
East ProvidenceModerateas of Jul 15GrassModerate
WoonsocketModerateas of Jul 15GrassModerate
Central FallsModerateas of Jul 15GrassModerate
Valley FallsModerateas of Jul 15GrassModerate
PascoagModerateas of Jul 15GrassModerate
RumfordModerateas of Jul 15GrassModerate
QuidnessettModerateas of Jul 15GrassModerate
LincolnModerateas of Jul 15GrassModerate
WarrenModerateas of Jul 15GrassModerate
BarringtonModerateas of Jul 15GrassModerate
JohnstonModerateas of Jul 15GrassModerate
RiversideModerateas of Jul 15GrassModerate
West WarwickModerateas of Jul 15GrassModerate
North ProvidenceModerateas of Jul 15GrassModerate
NewportNoneas of Jul 15NoneModerate
Newport EastNoneas of Jul 15NoneModerate
CarolinaNoneas of Jul 15NoneModerate
New ShorehamNoneas of Jul 15NoneModerate
CharlestownNoneas of Jul 15NoneModerate
Little ComptonNoneas of Jul 15NoneModerate
NarragansettNoneas of Jul 15NoneModerate
PortsmouthNoneas of Jul 15NoneModerate
WesterlyNoneas of Jul 15NoneModerate
CoventryNoneas of Jul 15NoneModerate
WakefieldNoneas of Jul 15NoneModerate
MiddletownNoneas of Jul 15NoneModerate
ExeterNoneas of Jul 15NoneModerate
Block IslandNoneas of Jul 15NoneModerate
CranstonNo live readingNot availableModerate
JamestownNo live readingNot availableModerate
Shore AcresNo live readingNot availableModerate
North KingstownNo live readingNot availableModerate

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

The Rhode Island allergy season

Allergy levels in Rhode Island 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 Rhode Island?

Pollen levels in Rhode Island usually begin climbing in March and reach their highest point in September.

What is the worst month for allergies in Rhode Island?

September is typically the worst month in Rhode Island, driven by ragweed pollen.

When does ragweed season end in Rhode Island?

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

When is the best time for allergies in Rhode Island?

January usually brings the lowest pollen levels of the year in Rhode Island.