Sun Prairie, Wisconsin Climate
United States
Pop. 32,365 Elev. 291 m / 955 ft
TZ: America/Chicago (UTC-5) ·
Sun Prairie is largely arid, with warm summers peaking at 83°F (28°C) in July and cold winters around 12°F (-11°C) in January. Humidity pushes the summer feels-like temperature to 89°F (32°C), while wind chill can drive winter lows to 2°F (-17°C). Precipitation occurs on roughly 44 days per year (28.3 in / 719 mm total), with snow on 6 days and 39 in (1001 mm) of annual accumulation. The city averages 112 sunny days per year and around 30 thunderstorm days. Nearby lake water reaches 77°F (25°C) in summer.
| Temperature | 83°F (28°C) high | 12°F (-11°C) low |
| Feels like | 89°F (32°C) high | 2°F (-17°C) low |
| Rain | 44 days | 28.3 in (719 mm) /yr |
| Snow | 6 days | 39.4 in (1001 mm) /yr |
| Sky | 112 sunny | 30 stormy |
| Wind | 2.6 mph (1.2 m/s) avg |
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Explore on the MapMonthly Climate Chart
Best months to visit: Sep, Oct
Sky & Air by Month
Cloud cover (%)
53
Jan 62
Feb 60
Mar 63
Apr 58
May 59
Jun 56
Jul 50
Aug 42
Sep 46
Oct 57
Nov 78
Dec Humidity (%)
60
Jan 63
Feb 59
Mar 61
Apr 62
May 68
Jun 74
Jul 74
Aug 72
Sep 70
Oct 68
Nov 78
Dec Weather Days by Month
Water Temperatures
Cities with Similar Climate
Find similar cities on the map →Nearby Cities
Nearby
Commercial airport 7 mi Dane County Regional Truax Field (MSN)
Ski resort 19 mi Blackhawk Ski Club
National park 100 mi Pikes Peak State Park
Hospital 5 mi UW Health East Madison Hospital
Hiking trail 18 mi IAT - Lodi Marsh Segment
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Monthly Weather Data
↑ See chart| Month | Avg High | Avg Low | Rainfall | Snowfall | Sunny Days |
|---|---|---|---|---|---|
| January | 28°F -2°C | 12°F -11°C | 0.0 in 0 mm | 1.7 in42 mm | 11 |
| February | 30°F -1°C | 15°F -10°C | 0.2 in 5 mm | 8.9 in227 mm | 6 |
| March | 53°F 12°C | 31°F -1°C | 3.3 in 83 mm | 7.7 in195 mm | 7 |
| April | 59°F 15°C | 39°F 4°C | 3.1 in 80 mm | 0.7 in17 mm | 6 |
| May | 68°F 20°C | 48°F 9°C | 3.6 in 91 mm | — | 10 |
| June | 80°F 27°C | 63°F 17°C | 4.7 in 118 mm | — | 8 |
| July | 83°F 28°C | 66°F 19°C | 4.8 in 121 mm | — | 11 |
| August | 78°F 26°C | 61°F 16°C | 4.1 in 104 mm | — | 15 |
| September | 75°F 24°C | 55°F 13°C | 1.6 in 40 mm | — | 13 |
| October | 64°F 18°C | 47°F 8°C | 1.3 in 32 mm | — | 13 |
| November | 47°F 8°C | 32°F 0°C | 1.0 in 25 mm | 9.8 in248 mm | 9 |
| December | 30°F -1°C | 15°F -9°C | 0.8 in 21 mm | 10.7 in272 mm | 3 |
Weather Days by Month
↑ See chart| Month | Sunny Days | Storm Days |
|---|---|---|
| January | 11 | 0 |
| February | 6 | 0 |
| March | 7 | 3 |
| April | 6 | 4 |
| May | 10 | 2 |
| June | 8 | 7 |
| July | 11 | 6 |
| August | 15 | 4 |
| September | 13 | 3 |
| October | 13 | 0 |
| November | 9 | 1 |
| December | 3 | 0 |
Water Temperatures Data
↑ See chart| Month | Lake Avg High |
|---|---|
| January | 32°F 0°C |
| February | 32°F 0°C |
| March | 36°F 2°C |
| April | 46°F 8°C |
| May | 56°F 13°C |
| June | 69°F 21°C |
| July | 77°F 25°C |
| August | 72°F 22°C |
| September | 65°F 18°C |
| October | 58°F 14°C |
| November | 42°F 5°C |
| December | 32°F 0°C |