Pollen count near you: where to check it, and what’s in season

Today’s pollen count comes from counting stations and forecast services, and we link the ones worth using. Below that, enter your ZIP code to see which pollens are typically in the air in your region this month, and what to do about them.

Short answer

For today’s measured pollen count, use the National Allergy Bureau station counts from the American Academy of Allergy, Asthma & Immunology at pollen.aaaai.org; for a modeled ZIP-code forecast, use Pollen.com. As a rule of thumb, trees pollinate mostly February through April (from December or January in the South), grasses April through early June (all year in warm regions), and ragweed and other weeds from August until the first hard frost, peaking in early to mid-September; outdoor mold runs from July until the frost (AAFA, ACAAI, AAAAI).

Written by Curex editorial team

What’s typically in season where you live

Enter your ZIP code to see which pollens are usually in the air in your region this month. This is a typical-season calendar built from AAAAI, ACAAI and AAFA guidance — not a pollen count or forecast.

Typical season for your region, not a forecast. Your ZIP code stays in your browser.

Typical seasons by region, month by month

● Typical season · ◐ Possible in some years or areas · blank: Usually low. Weather moves each year’s season earlier or later.

Most of the continental US

Trees lead in late winter and spring, grasses follow in late spring and early summer, and ragweed and other weeds run from August to the first hard frost (AAFA, ACAAI).

Typical pollen season by month for Most of the continental US
TypeJanFebMarAprMayJunJulAugSepOctNovDec
TreesUsually lowTypical seasonTypical seasonTypical seasonPossible in some years or areasUsually lowUsually lowUsually lowUsually lowUsually lowUsually lowUsually low
GrassesUsually lowUsually lowUsually lowTypical seasonTypical seasonTypical seasonPossible in some years or areasPossible in some years or areasUsually lowUsually lowUsually lowUsually low
Weeds / ragweedUsually lowUsually lowUsually lowUsually lowUsually lowUsually lowUsually lowTypical seasonTypical seasonTypical seasonPossible in some years or areasUsually low
Outdoor moldUsually lowUsually lowUsually lowUsually lowUsually lowUsually lowTypical seasonTypical seasonTypical seasonTypical seasonPossible in some years or areasUsually low

The South

In the South, trees can start pollinating as early as December or January, and grass pollen can be found all year (AAFA). Warm, humid weather also keeps outdoor mold around longer (AAFA).

Typical pollen season by month for The South
TypeJanFebMarAprMayJunJulAugSepOctNovDec
TreesPossible in some years or areasTypical seasonTypical seasonTypical seasonPossible in some years or areasUsually lowUsually lowUsually lowUsually lowUsually lowUsually lowPossible in some years or areas
GrassesPossible in some years or areasPossible in some years or areasPossible in some years or areasTypical seasonTypical seasonTypical seasonPossible in some years or areasPossible in some years or areasPossible in some years or areasPossible in some years or areasPossible in some years or areasPossible in some years or areas
Weeds / ragweedUsually lowUsually lowUsually lowUsually lowUsually lowUsually lowUsually lowTypical seasonTypical seasonTypical seasonPossible in some years or areasUsually low
Outdoor moldPossible in some years or areasPossible in some years or areasPossible in some years or areasPossible in some years or areasPossible in some years or areasPossible in some years or areasTypical seasonTypical seasonTypical seasonTypical seasonPossible in some years or areasPossible in some years or areas

California

AAFA names California among the warmer parts of the country where grass pollen can be found year-round; tree and weed timing follows the general pattern.

Typical pollen season by month for California
TypeJanFebMarAprMayJunJulAugSepOctNovDec
TreesUsually lowTypical seasonTypical seasonTypical seasonPossible in some years or areasUsually lowUsually lowUsually lowUsually lowUsually lowUsually lowUsually low
GrassesPossible in some years or areasPossible in some years or areasPossible in some years or areasTypical seasonTypical seasonTypical seasonPossible in some years or areasPossible in some years or areasPossible in some years or areasPossible in some years or areasPossible in some years or areasPossible in some years or areas
Weeds / ragweedUsually lowUsually lowUsually lowUsually lowUsually lowUsually lowUsually lowTypical seasonTypical seasonTypical seasonPossible in some years or areasUsually low
Outdoor moldUsually lowUsually lowUsually lowUsually lowUsually lowUsually lowTypical seasonTypical seasonTypical seasonTypical seasonPossible in some years or areasUsually low

Alaska, Hawaii and US territories

The published season guidance describes the mainland pattern, so we do not show a calendar here. Use a local count or ask a local allergist about your area.

Where to check today’s pollen count

Curex does not measure pollen and this page shows no live counts. For today’s numbers, use a source that does, and check the date and the location of each reading.

Tree pollen

Grass pollen

Ragweed and other weed pollen

Outdoor mold

Treating seasonal allergies, not just the season

Treat pollen allergy at home, before the season starts

Frequently Asked Questions

If you experience sudden difficulty breathing, throat swelling, or other signs of anaphylaxis, call 911. A prescribed epinephrine auto-injector is the first-line treatment — not antihistamines.

This content is for informational purposes only and does not constitute medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider with questions about a medical condition. Content reviewed by board-certified allergists at Curex.

Season timing is typical, not a forecast, and comes from AAAAI, ACAAI and AAFA patient guidance. This page is general information, not medical advice.

Ready to treat your allergies at the source?

Take the free allergy quiz to find out if immunotherapy is right for you and get started with personalized treatment today.

Take Free Allergy Quiz