State Guides
Allergy season guides for all 50 states
Each state guide covers local climate, pollen seasons, mold patterns, top allergens, a month-by-month calendar, and PollyMap collection partner status.
AL
Alabama Allergy Season Guide
Alabama experiences a humid subtropical climate with long, hot, humid summers and short, mild winters.
AK
Alaska Allergy Season Guide
Alaska experiences a subarctic to arctic climate with long, cold winters and short, cool summers.
AZ
Arizona Allergy Season Guide
Arizona experiences a hot, arid desert climate with long dry summers, mild winters, and very low annual rainfall.
AR
Arkansas Allergy Season Guide
Arkansas experiences a humid subtropical climate with long, hot, humid summers and short, mild winters.
CA
California Allergy Season Guide
California experiences a Mediterranean climate with mild, wet winters and warm, dry summers along the coast, with hotter inland valleys.
CO
Colorado Allergy Season Guide
Colorado experiences a high-elevation semi-arid to alpine climate with cold winters, warm dry summers, and dramatic day-night temperature swings.
CT
Connecticut Allergy Season Guide
Connecticut experiences a humid continental climate with four distinct seasons — cold, snowy winters and warm, humid summers.
DE
Delaware Allergy Season Guide
Delaware experiences a humid subtropical to humid continental climate with warm, humid summers and mild to cold winters.
DC
District of Columbia Allergy Season Guide
FL
Florida Allergy Season Guide
Florida experiences a humid subtropical climate with long, hot, humid summers and short, mild winters.
GA
Georgia Allergy Season Guide
Georgia experiences a humid subtropical climate with long, hot, humid summers and short, mild winters.
HI
Hawaii Allergy Season Guide
Hawaii experiences a tropical climate with consistent warm temperatures, trade winds, and a wet-dry seasonal pattern that varies by elevation and island side.
ID
Idaho Allergy Season Guide
Idaho experiences a high-elevation semi-arid to alpine climate with cold winters, warm dry summers, and dramatic day-night temperature swings.
IL
Illinois Allergy Season Guide
Illinois experiences a humid continental climate with hot, humid summers and cold, snowy winters.
IN
Indiana Allergy Season Guide
Indiana experiences a humid continental climate with hot, humid summers and cold, snowy winters.
IA
Iowa Allergy Season Guide
Iowa experiences a humid continental climate with hot, humid summers and cold, snowy winters.
KS
Kansas Allergy Season Guide
Kansas experiences a continental climate with hot, humid summers, cold winters, and frequent severe weather.
KY
Kentucky Allergy Season Guide
Kentucky experiences a humid subtropical to humid continental climate with warm, humid summers and mild to cold winters.
LA
Louisiana Allergy Season Guide
Louisiana experiences a humid subtropical climate with long, hot, humid summers and short, mild winters.
ME
Maine Allergy Season Guide
Maine experiences a humid continental climate with four distinct seasons — cold, snowy winters and warm, humid summers.
MD
Maryland Allergy Season Guide
Maryland experiences a humid subtropical to humid continental climate with warm, humid summers and mild to cold winters.
MA
Massachusetts Allergy Season Guide
Massachusetts experiences a humid continental climate with four distinct seasons — cold, snowy winters and warm, humid summers.
MI
Michigan Allergy Season Guide
Michigan experiences a humid continental climate with hot, humid summers and cold, snowy winters.
MN
Minnesota Allergy Season Guide
Minnesota experiences a humid continental climate with hot, humid summers and cold, snowy winters.
MS
Mississippi Allergy Season Guide
Mississippi experiences a humid subtropical climate with long, hot, humid summers and short, mild winters.
MO
Missouri Allergy Season Guide
Missouri experiences a humid continental climate with hot, humid summers and cold, snowy winters.
MT
Montana Allergy Season Guide
Montana experiences a high-elevation semi-arid to alpine climate with cold winters, warm dry summers, and dramatic day-night temperature swings.
NE
Nebraska Allergy Season Guide
Nebraska experiences a continental climate with hot, humid summers, cold winters, and frequent severe weather.
NV
Nevada Allergy Season Guide
Nevada experiences a hot, arid desert climate with long dry summers, mild winters, and very low annual rainfall.
NH
New Hampshire Allergy Season Guide
New Hampshire experiences a humid continental climate with four distinct seasons — cold, snowy winters and warm, humid summers.
NJ
New Jersey Allergy Season Guide
New Jersey experiences a humid continental climate with four distinct seasons — cold, snowy winters and warm, humid summers.
NM
New Mexico Allergy Season Guide
New Mexico experiences a hot, arid desert climate with long dry summers, mild winters, and very low annual rainfall.
NY
New York Allergy Season Guide
New York experiences a humid continental climate with four distinct seasons — cold, snowy winters and warm, humid summers.
NC
North Carolina Allergy Season Guide
North Carolina experiences a humid subtropical to humid continental climate with warm, humid summers and mild to cold winters.
ND
North Dakota Allergy Season Guide
North Dakota experiences a continental climate with hot, humid summers, cold winters, and frequent severe weather.
OH
Ohio Allergy Season Guide
Ohio experiences a humid continental climate with hot, humid summers and cold, snowy winters.
OK
Oklahoma Allergy Season Guide
Oklahoma experiences a continental climate with hot, humid summers, cold winters, and frequent severe weather.
OR
Oregon Allergy Season Guide
Oregon experiences a cool, wet maritime climate with mild summers, rainy winters, and high year-round humidity.
PA
Pennsylvania Allergy Season Guide
Pennsylvania experiences a humid continental climate with four distinct seasons — cold, snowy winters and warm, humid summers.
RI
Rhode Island Allergy Season Guide
Rhode Island experiences a humid continental climate with four distinct seasons — cold, snowy winters and warm, humid summers.
SC
South Carolina Allergy Season Guide
South Carolina experiences a humid subtropical climate with long, hot, humid summers and short, mild winters.
SD
South Dakota Allergy Season Guide
South Dakota experiences a continental climate with hot, humid summers, cold winters, and frequent severe weather.
TN
Tennessee Allergy Season Guide
Tennessee experiences a humid subtropical to humid continental climate with warm, humid summers and mild to cold winters.
TX
Texas Allergy Season Guide
Texas experiences a wide range of climates from humid subtropical in the east to semi-arid in the west, with hot summers and mild winters statewide.
UT
Utah Allergy Season Guide
Utah experiences a high-elevation semi-arid to alpine climate with cold winters, warm dry summers, and dramatic day-night temperature swings.
VT
Vermont Allergy Season Guide
Vermont experiences a humid continental climate with four distinct seasons — cold, snowy winters and warm, humid summers.
VA
Virginia Allergy Season Guide
Virginia experiences a humid subtropical to humid continental climate with warm, humid summers and mild to cold winters.
WA
Washington Allergy Season Guide
Washington experiences a cool, wet maritime climate with mild summers, rainy winters, and high year-round humidity.
WV
West Virginia Allergy Season Guide
West Virginia experiences a humid subtropical to humid continental climate with warm, humid summers and mild to cold winters.
WI
Wisconsin Allergy Season Guide
Wisconsin experiences a humid continental climate with hot, humid summers and cold, snowy winters.
WY
Wyoming Allergy Season Guide
Wyoming experiences a high-elevation semi-arid to alpine climate with cold winters, warm dry summers, and dramatic day-night temperature swings.