Allergy season guides for all 50 states

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.

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.