Average Spring Humidity by USA State





The average humidity during spring is listed here for each state in the United States. The tables give annual averages for morning and afternoon relative humidity levels.

The Morning humidity values for a state are recorded between 4 and 6 am local standard time, when usually temperatures are coolest and humidity highest. Afternoon humidity percentages are readings taken between 3 and 5 pm local standard time, when normally the day's temperature peaks and relative humidity reaches its lowest point.

Since so few weather stations measure humidity, meaningful state-wide averages aren't available. Instead the tables list a place for each state that represents the state's typical humidity levels.

All of the numbers are averages of several decades of weather measurements. The spring averages are based on data for the months of March, April and May.

Average relative humidity (%) in spring
State Place Morn­ing After­noon
Alabama Birmingham 83 48
Alaska Anchorage 74 54
Arizona Tucson 43 17
Arkansas Fort Smith 83 48
California San Diego 76 61
Colorado Grand Junction 57 29
Connecti­cut Hartford 75 47
Delaware Wilmington 76 50
Florida Tampa 86 52
Georgia Macon 85 45
Hawaii Honolulu 69 55
Idaho Boise 69 36
Illinois Peoria 80 54
Indiana Indianapolis 79 55
Iowa Des Moines 75 52
Kansas Wichita 79 49
Kentucky Louisville 76 51
State Place Morn­ing After­noon
Louisiana New Orleans 86 58
Maine Portland 79 58
Maryland Baltimore 73 48
Massachu­setts Boston 72 57
Michigan Lansing 80 56
Minnesota Minneapolis 75 51
Mississippi Jackson 90 51
Missouri Springfield 80 52
Montana Helena 71 41
Nebraska Lincoln 81 51
Nevada Reno 68 29
New Hampshire Concord 81 47
New Jersey Atlantic City 81 55
New Mexico Albuquer­que 51 20
New York Syracuse 79 55
North Carolina Greensboro 80 48
North Dakota Bismarck 79 48
State Place Morn­ing After­noon
Ohio Columbus 76 52
Oklahoma Oklahoma City 78 47
Oregon Portland 85 56
Pennsylvania Harrisburg 73 49
Rhode Island Providence 75 52
South Carolina Columbia 84 43
South Dakota Huron 83 53
Tennessee Nashville 82 50
Texas Dallas 82 51
Utah Salt Lake City 67 40
Vermont Burlington 73 53
Virginia Richmond 80 46
Washington Seattle 82 57
West Virginia Beckley 77 52
Wisconsin Madison 81 53
Wyoming Lander 65 40
References

National Climatic Data Center. Comparative Climatic Data.

World Data Center for Meteorology. Climate of the World.

State Humidity
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