Pollen Count
- Intermountain Allergy and Asthma Clinic - Local Utah pollen counts.
- National Allergy Bureau - Maps of U.S. pollen levels.
|
Pacific Northwest |
North Central |
Northeast |
| Trees: March - May Grasses: April - July Weeds: June - September |
Trees: March - May Grasses: May - June Ragweed: August - September Other weeds: June - September |
Trees: February - April Grasses: April - June Ragweed: Mid August - September Other weeds: May - September |
|
Northern California |
Midwest |
Mid-Atlantic |
| Trees: February - May Grasses: April - September Sagebrush: July - October Other weeds: March - October |
Trees: March - May Grasses: May - June Ragweed: August - September Other weeds: July - October |
Trees: March - May Grasses: May - June Ragweed: Mid August - September Other weeds: May - September |
|
Southern California |
South Central |
Southeast |
| Trees: February - June Grasses: April - June Sagebrush: July - October Other weeds: June - October |
Mountain Cedar: December - February Other trees: February - April Grasses: February - June Ragweed: August - October Other weeds: June - October |
Trees: February - May Grasses: May - June Ragweed: August - October Other weeds: May - October |