Decatur, Wisconsin Climate
United States
Pop. 1,803 Elev. 251 m / 824 ft
TZ: America/Chicago (UTC-5) ·
Dry and warm, Decatur sees July highs of 84°F (29°C) and cold January lows of 13°F (-11°C). Humidity pushes the summer feels-like temperature to 91°F (33°C), while wind chill can drive winter lows to 4°F (-16°C). Expect around 45 rainy days annually (29.8 in / 757 mm total), with snow on 5 days and 36 in (914 mm) of annual accumulation. The city averages 113 sunny days per year and around 30 thunderstorm days. Nearby lake water reaches 77°F (25°C) in summer.
| Temperature | 84°F (29°C) high | 13°F (-11°C) low |
| Feels like | 91°F (33°C) high | 4°F (-16°C) low |
| Rain | 45 days | 29.8 in (757 mm) /yr |
| Snow | 5 days | 36.0 in (914 mm) /yr |
| Sky | 113 sunny | 30 stormy |
| Wind | 2.4 mph (1.1 m/s) avg |
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Explore on the MapMonthly Climate Chart
Best months to visit: Apr, Sep, Oct
Sky & Air by Month
Cloud cover (%)
52
Jan 63
Feb 57
Mar 65
Apr 57
May 55
Jun 58
Jul 51
Aug 41
Sep 46
Oct 56
Nov 77
Dec Humidity (%)
59
Jan 62
Feb 57
Mar 59
Apr 59
May 66
Jun 73
Jul 72
Aug 70
Sep 69
Oct 68
Nov 75
Dec Weather Days by Month
Water Temperatures
Cities with Similar Climate
Find similar cities on the map →Nearby Cities
Nearby
Commercial airport 35 mi Dane County Regional Truax Field (MSN)
Ski resort 32 mi Blackhawk Ski Club
National park 93 mi Pikes Peak State Park
Hospital 11 mi Monroe Clinic Hospital
Hiking trail 7 mi IAT - Albany-Evansville connection
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Monthly Weather Data
↑ See chart| Month | Avg High | Avg Low | Rainfall | Snowfall | Sunny Days |
|---|---|---|---|---|---|
| January | 29°F -2°C | 13°F -11°C | 0.0 in 1 mm | 1.6 in41 mm | 12 |
| February | 32°F 0°C | 16°F -9°C | 0.2 in 6 mm | 8.1 in207 mm | 6 |
| March | 55°F 13°C | 33°F 1°C | 2.9 in 74 mm | 7.9 in201 mm | 7 |
| April | 60°F 16°C | 40°F 5°C | 2.5 in 65 mm | 0.3 in7 mm | 4 |
| May | 69°F 21°C | 49°F 10°C | 3.3 in 85 mm | — | 11 |
| June | 82°F 28°C | 64°F 18°C | 5.4 in 137 mm | — | 9 |
| July | 84°F 29°C | 68°F 20°C | 5.7 in 146 mm | — | 9 |
| August | 79°F 26°C | 62°F 17°C | 4.6 in 118 mm | — | 12 |
| September | 76°F 25°C | 56°F 13°C | 1.8 in 46 mm | — | 15 |
| October | 65°F 18°C | 47°F 9°C | 1.3 in 33 mm | — | 14 |
| November | 48°F 9°C | 33°F 1°C | 0.8 in 20 mm | 10.3 in261 mm | 10 |
| December | 32°F 0°C | 17°F -8°C | 1.1 in 27 mm | 7.8 in198 mm | 4 |
Weather Days by Month
↑ See chart| Month | Sunny Days | Storm Days |
|---|---|---|
| January | 12 | 0 |
| February | 6 | 0 |
| March | 7 | 3 |
| April | 4 | 2 |
| May | 11 | 2 |
| June | 9 | 4 |
| July | 9 | 7 |
| August | 12 | 6 |
| September | 15 | 4 |
| October | 14 | 1 |
| November | 10 | 0 |
| December | 4 | 1 |
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 |