De Witt, Iowa Climate
United States
Pop. 5,242 Elev. 219 m / 719 ft
TZ: America/Chicago (UTC-5) ·
Dry and warm, De Witt sees July highs of 85°F (29°C) and cold January lows of 15°F (-9°C). Humidity pushes the summer feels-like temperature to 96°F (36°C), while wind chill can drive winter lows to 5°F (-15°C). Expect around 38 rainy days annually (31.0 in / 788 mm total), with snow on 4 days and 32 in (805 mm) of annual accumulation. The city averages 123 sunny days per year and around 29 thunderstorm days. Nearby lake water reaches 77°F (25°C) in summer.
| Temperature | 85°F (30°C) high | 15°F (-10°C) low |
| Feels like | 96°F (36°C) high | 5°F (-15°C) low |
| Rain | 38 days | 31.0 in (788 mm) /yr |
| Snow | 4 days | 31.7 in (805 mm) /yr |
| Sky | 123 sunny | 29 stormy |
| Wind | 2.6 mph (1.2 m/s) avg |
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Explore on the MapMonthly Climate Chart
Best months to visit: Aug, Sep, Oct
Sky & Air by Month
Cloud cover (%)
48
Jan 59
Feb 50
Mar 67
Apr 55
May 52
Jun 59
Jul 52
Aug 42
Sep 44
Oct 55
Nov 73
Dec Humidity (%)
61
Jan 65
Feb 58
Mar 59
Apr 58
May 67
Jun 76
Jul 75
Aug 62
Sep 59
Oct 65
Nov 78
Dec Weather Days by Month
Water Temperatures
Cities with Similar Climate
Find similar cities on the map →Nearby Cities
Nearby
Commercial airport 26 mi Quad City International Airport (MLI)
Ski resort 35 mi Chestnut Mountain Resort
National park 88 mi Pikes Peak State Park
Hospital 1 mi Genesis Medical Center, DeWitt Campus
Hiking trail 29 mi Mississippi Palisades State Park Trails south
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Monthly Weather Data
↑ See chart| Month | Avg High | Avg Low | Rainfall | Snowfall | Sunny Days |
|---|---|---|---|---|---|
| January | 31°F -1°C | 15°F -10°C | 1.1 in 27 mm | 2.5 in64 mm | 14 |
| February | 34°F 1°C | 18°F -8°C | 0.1 in 2 mm | 6.4 in163 mm | 8 |
| March | 58°F 14°C | 35°F 2°C | 3.9 in 98 mm | 5.8 in148 mm | 12 |
| April | 63°F 17°C | 44°F 7°C | 4.3 in 109 mm | — | 4 |
| May | 73°F 23°C | 52°F 11°C | 3.4 in 86 mm | — | 11 |
| June | 84°F 29°C | 65°F 19°C | 5.4 in 137 mm | — | 10 |
| July | 85°F 30°C | 70°F 21°C | 5.2 in 132 mm | — | 6 |
| August | 81°F 27°C | 63°F 17°C | 3.3 in 83 mm | — | 14 |
| September | 81°F 27°C | 57°F 14°C | 0.8 in 21 mm | — | 16 |
| October | 70°F 21°C | 50°F 10°C | 1.5 in 38 mm | — | 13 |
| November | 51°F 11°C | 35°F 2°C | 1.0 in 25 mm | 10.0 in255 mm | 11 |
| December | 33°F 1°C | 18°F -8°C | 1.2 in 30 mm | 6.9 in175 mm | 4 |
Weather Days by Month
↑ See chart| Month | Sunny Days | Storm Days |
|---|---|---|
| January | 14 | 1 |
| February | 8 | 0 |
| March | 12 | 4 |
| April | 4 | 3 |
| May | 11 | 3 |
| June | 10 | 4 |
| July | 6 | 6 |
| August | 14 | 4 |
| September | 16 | 2 |
| October | 13 | 1 |
| November | 11 | 0 |
| December | 4 | 1 |
Water Temperatures Data
↑ See chart| Month | Lake Avg High |
|---|---|
| January | 32°F 0°C |
| February | 32°F 0°C |
| March | 38°F 3°C |
| April | 49°F 9°C |
| May | 58°F 15°C |
| June | 70°F 21°C |
| July | 77°F 25°C |
| August | 74°F 23°C |
| September | 67°F 19°C |
| October | 59°F 15°C |
| November | 42°F 6°C |
| December | 32°F 0°C |