Average Spring Sunshine by State

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The tables below pull together numbers on the amount of sunshine that each US state usually has during spring. There's information by state on the season's averages for percent, hours and days of sun.

The % Sun number measures the percentage of time between sunrise and sunset that sunshine reaches the ground. Total Hours is the average number of sunny hours a place normally has in spring. Clear Days is the average number of days in spring when cloud covers at most 30 percent of the sky during daylight hours.

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

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

Average amount of sunshine in spring
State Place % Sun Total Hours Clear Days
Alabama Birmingham 61   749 24
Alaska Anchorage 50   720 18
Arizona Tucson 89 1079 52
Arkansas Fort Smith 59   726 26
California San Diego 66   788 29
Colorado Grand Junction 69   847 26
Connecticut Hartford 56   701 19
Delaware Wilmington   – 22
Florida Tampa 74   881 33
Georgia Macon 70   849 29
Hawaii  Honolulu 71   – 21
Idaho Boise 67   856 20
Illinois Peoria 55   683 19
Indiana Indianapolis 55   658 19
Iowa Des Moines 58   704 22
Kansas Wichita 63   778 26
Kentucky Louisville 56   673 20
Louisiana New Orleans 60   750 25
Maine Portland 55   662 22
Maryland Baltimore 56   700 24
Massachusetts Boston 57   708 21
Michigan Lansing 54   685 18
Minnesota Minneapolis 59   755 21
Mississippi Jackson 63   751 26
Missouri Springfield 58   713 23
State Place % Sun Total Hours Clear Days
Montana Helena 60   751 13
Nebraska Lincoln 59   722 24
Nevada Reno 79   999 28
New Hampshire Concord 54   692 21
New Jersey Atlantic City 56   667 21
New Mexico Albuquerque 76   922 38
New York Syracuse 50   620 17
North Carolina Greensboro 62   737 27
North Dakota Bismarck 59   763 18
Ohio Columbus 50   607 16
Oklahoma Oklahoma City 66   811 28
Oregon Portland 52   688 11
Pennsylvania Harrisburg 59   716 19
Rhode Island Providence 58   696 21
South Carolina Columbia 67   800 29
South Dakota Huron 62   789 21
Tennessee Nashville 57   685 24
Texas Dallas 59   722 27
Utah Salt Lake City 68   833 23
Vermont Burlington 52   648 16
Virginia Richmond 65   783 23
Washington Seattle 53   639 10
West Virginia Beckley   – 15
Wisconsin Madison 54   657 19
Wyoming Lander 67   823 19
References

National Climatic Data Center. Comparative Climatic Data.

World Data Center for Meteorology. Climate of the World.

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