Weather Reports for the city of De Witt in Illinois
snow
rain
temp
wind
humidity| Jan | Feb | Mar | Apr | May | Jun | |
|---|---|---|---|---|---|---|
| Average High (°F) | 34.8 | 37.7 | 52.4 | 65.2 | 75.6 | 84.1 |
| Average Low (°F) | 19.3 | 20.6 | 32.8 | 42.5 | 54.5 | 63.9 |
| All Time High (°F) | 64.9 | 73.0 | 82.9 | 87.1 | 97.0 | 102.9 |
| All Time Low (°F) | -20.9 | -18.6 | -14.4 | 6.1 | 28.0 | 46.4 |
| Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|
| Average High (°F) | 86.1 | 84.5 | 80.2 | 66.8 | 51.7 | 41.6 |
| Average Low (°F) | 66.5 | 63.9 | 57.6 | 46.1 | 33.4 | 26.6 |
| All Time High (°F) | 104.0 | 99.0 | 100.9 | 90.0 | 80.1 | 72.0 |
| All Time Low (°F) | 50.0 | 46.6 | 35.1 | 23.0 | 5.0 | -6.0 |
| Jan | Feb | Mar | Apr | May | Jun | |
|---|---|---|---|---|---|---|
| Percent of Rainy Days | 0.1 | 0.1 | 0.2 | 0.3 | 0.3 | 0.2 |
| Avg. Rainfall (in) on Rainy Day | 0.4 | 0.3 | 0.3 | 0.4 | 0.4 | 0.5 |
| All Time Rainfall (in) on Rainy Day | 2.4 | 2.2 | 1.3 | 2.4 | 3.6 | 4.3 |
| 30 Day Rain Accumulation | 1.7 | 1.6 | 2.5 | 3.7 | 4.9 | 4.6 |
| All Time 30 Day Rain Accumulation | 3.8 | 4.1 | 4.7 | 6.9 | 9.0 | 9.9 |
| Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|
| Percent of Rainy Days | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 |
| Avg. Rainfall (in) on Rainy Day | 0.4 | 0.5 | 0.5 | 0.4 | 0.3 | 0.3 |
| All Time Rainfall (in) on Rainy Day | 4.4 | 2.9 | 3.2 | 3.0 | 1.6 | 3.4 |
| 30 Day Rain Accumulation | 3.4 | 3.1 | 3.6 | 3.2 | 2.4 | 2.4 |
| All Time 30 Day Rain Accumulation | 10.1 | 6.6 | 6.7 | 6.6 | 4.9 | 9.5 |
| Jan | Feb | Mar | Apr | May | Jun | |
|---|---|---|---|---|---|---|
| Percent of Days with Snowfall | 0.1 | 0.1 | 0.1 | 0.0 | 0.0 | 0.0 |
| Avg. Snowfall Depth (in) | 2.0 | 2.4 | 0.8 | 0.5 | 0.0 | 0.0 |
| 30 Day Snowfall Total (in) | 6.4 | 7.5 | 1.3 | 0.3 | 0.0 | 0.0 |
| All Time Snowfall Depth (in) | 11.7 | 21.6 | 5.4 | 1.8 | 0.0 | 0.0 |
| All Time 30 Day Snowfall Total (in) | 28.8 | 26.3 | 9.1 | 4.2 | 0.0 | 0.0 |
| Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|
| Percent of Days with Snowfall | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.1 |
| Avg. Snowfall Depth (in) | 0.0 | 0.0 | 0.0 | 2.4 | 0.7 | 1.2 |
| 30 Day Snowfall Total (in) | 0.0 | 0.0 | 0.0 | 0.4 | 1.0 | 2.9 |
| All Time Snowfall Depth (in) | 0.0 | 0.0 | 0.0 | 5.1 | 7.9 | 9.6 |
| All Time 30 Day Snowfall Total (in) | 0.0 | 0.0 | 0.0 | 5.1 | 10.0 | 10.5 |
Instead of using humidity directly we use dew point to measure what people commonly mean when saying it feels humid. Dew point is classified into 4 categories: Dry (under 25°F), Comfortable (25°F to 60°F), Muggy (60°F to 70°F) and Oppressive (70°F or greater). The table below shows the percentage of days with a dew point within a particular class.
| Jan | Feb | Mar | Apr | May | Jun | |
|---|---|---|---|---|---|---|
| Dry | 57.9 | 55.3 | 26.7 | 7.8 | 0.1 | 0.0 |
| Comfortable | 42.1 | 44.7 | 72.6 | 90.6 | 69.5 | 36.1 |
| Muggy | 0.0 | 0.0 | 0.7 | 1.7 | 30.2 | 49.9 |
| Oppressive | 0.0 | 0.0 | 0.0 | 0.0 | 0.1 | 14.0 |
| Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|
| Dry | 0.0 | 0.0 | 0.0 | 1.5 | 20.0 | 39.9 |
| Comfortable | 15.3 | 25.8 | 56.8 | 86.5 | 79.4 | 59.9 |
| Muggy | 52.6 | 51.7 | 38.8 | 12.0 | 0.6 | 0.1 |
| Oppressive | 32.1 | 22.4 | 4.4 | 0.0 | 0.0 | 0.0 |
The table below shows the distribution of average wind speeds in miles per hour for a given month or day. Wind speed may vary throughout a day and we show the average speed. Peak gusts or sustained maximum speeds may be significantly higher.
| Jan | Feb | Mar | Apr | May | Jun | |
|---|---|---|---|---|---|---|
| 10th | 5.0 | 4.8 | 4.7 | 5.2 | 5.2 | 4.7 |
| 25th | 6.9 | 6.9 | 6.9 | 7.5 | 6.9 | 6.4 |
| 50th | 10.2 | 10.3 | 10.1 | 10.7 | 9.4 | 8.6 |
| 75th | 14.1 | 13.8 | 14.0 | 14.6 | 12.8 | 11.4 |
| 90th | 17.8 | 17.7 | 17.7 | 18.3 | 16.1 | 14.3 |
| Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|
| 10th | 4.6 | 4.2 | 4.6 | 4.7 | 4.9 | 5.1 |
| 25th | 5.8 | 5.4 | 5.8 | 6.6 | 6.9 | 6.9 |
| 50th | 7.4 | 6.9 | 7.7 | 9.2 | 9.9 | 9.7 |
| 75th | 9.7 | 9.2 | 10.3 | 12.6 | 13.7 | 13.1 |
| 90th | 12.6 | 11.6 | 13.4 | 16.0 | 17.3 | 16.6 |
The table below shows the distribution of wind direction (wind coming out of a particular direction) for a given month or day. Wind direction may vary throughout a day and the computation accounts for all measured changes in direction througout the day or month.
| Jan | Feb | Mar | Apr | May | Jun | |
|---|---|---|---|---|---|---|
| North | 11.0 | 14.8 | 15.0 | 10.8 | 12.2 | 7.8 |
| NorthEast | 5.6 | 7.5 | 11.2 | 9.0 | 11.1 | 9.3 |
| East | 7.2 | 8.1 | 13.4 | 13.1 | 10.7 | 8.2 |
| SouthEast | 6.2 | 7.0 | 8.8 | 9.0 | 9.4 | 7.9 |
| South | 16.8 | 15.5 | 17.5 | 19.9 | 21.9 | 22.6 |
| SouthWest | 13.7 | 12.1 | 9.3 | 11.2 | 14.4 | 21.2 |
| West | 21.2 | 15.7 | 11.3 | 14.0 | 11.6 | 14.0 |
| NorthWest | 18.3 | 19.2 | 13.4 | 13.0 | 8.5 | 8.9 |
| Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|
| North | 10.2 | 11.5 | 13.7 | 12.7 | 9.7 | 10.0 |
| NorthEast | 12.1 | 11.0 | 12.9 | 7.4 | 5.2 | 5.2 |
| East | 11.0 | 11.2 | 9.4 | 6.7 | 5.4 | 7.2 |
| SouthEast | 8.2 | 8.4 | 7.6 | 7.0 | 7.6 | 7.7 |
| South | 19.2 | 22.2 | 21.4 | 21.5 | 27.9 | 20.9 |
| SouthWest | 18.5 | 17.1 | 15.5 | 15.4 | 15.2 | 15.1 |
| West | 11.7 | 9.7 | 10.0 | 16.3 | 15.6 | 18.9 |
| NorthWest | 9.0 | 8.8 | 9.6 | 13.0 | 13.4 | 15.0 |