Weather Reports for the city of Alcester in South Dakota
snow
rain
temp
wind
humidity| Jan | Feb | Mar | Apr | May | Jun | |
|---|---|---|---|---|---|---|
| Average High (°F) | 30.0 | 32.0 | 49.4 | 61.4 | 72.3 | 84.2 |
| Average Low (°F) | 11.2 | 12.0 | 27.1 | 36.4 | 48.5 | 60.5 |
| All Time High (°F) | 66.2 | 75.2 | 84.9 | 91.4 | 102.2 | 129.2 |
| All Time Low (°F) | -29.9 | -32.8 | -17.0 | 5.0 | 23.0 | 39.9 |
| Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|
| Average High (°F) | 86.8 | 83.5 | 78.2 | 63.3 | 48.6 | 34.7 |
| Average Low (°F) | 64.1 | 61.4 | 53.6 | 39.4 | 26.1 | 16.1 |
| All Time High (°F) | 111.2 | 105.8 | 98.6 | 96.8 | 82.0 | 66.2 |
| All Time Low (°F) | 44.1 | 37.4 | 24.8 | 10.4 | -5.1 | -27.0 |
| Jan | Feb | Mar | Apr | May | Jun | |
|---|---|---|---|---|---|---|
| Percent of Rainy Days | 0.0 | 0.0 | 0.1 | 0.1 | 0.2 | 0.2 |
| Avg. Rainfall (in) on Rainy Day | 0.1 | 0.3 | 0.3 | 0.3 | 0.3 | 0.4 |
| All Time Rainfall (in) on Rainy Day | 0.5 | 1.4 | 2.8 | 1.6 | 2.9 | 4.4 |
| 30 Day Rain Accumulation | 0.3 | 0.4 | 0.9 | 1.5 | 2.3 | 2.6 |
| All Time 30 Day Rain Accumulation | 1.3 | 2.2 | 3.7 | 4.8 | 8.6 | 14.4 |
| Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|
| Percent of Rainy Days | 0.1 | 0.2 | 0.1 | 0.1 | 0.0 | 0.0 |
| Avg. Rainfall (in) on Rainy Day | 0.5 | 0.4 | 0.3 | 0.4 | 0.2 | 0.3 |
| All Time Rainfall (in) on Rainy Day | 4.0 | 3.4 | 4.0 | 3.0 | 0.9 | 1.2 |
| 30 Day Rain Accumulation | 2.4 | 2.1 | 1.7 | 1.3 | 0.4 | 0.5 |
| All Time 30 Day Rain Accumulation | 10.8 | 6.6 | 7.5 | 6.4 | 3.3 | 2.0 |
| 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) | 2.3 | 2.4 | 1.9 | 2.2 | 0.4 | 0.0 |
| 30 Day Snowfall Total (in) | 5.4 | 6.1 | 4.3 | 2.9 | 0.0 | 0.0 |
| All Time Snowfall Depth (in) | 19.5 | 14.5 | 12.0 | 24.1 | 1.7 | 0.0 |
| All Time 30 Day Snowfall Total (in) | 34.5 | 33.9 | 27.2 | 30.3 | 1.7 | 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 | 0.3 | 1.6 | 3.0 |
| 30 Day Snowfall Total (in) | 0.0 | 0.0 | 0.0 | 0.2 | 1.5 | 6.7 |
| All Time Snowfall Depth (in) | 0.0 | 0.0 | 0.0 | 1.9 | 13.8 | 18.4 |
| All Time 30 Day Snowfall Total (in) | 0.0 | 0.0 | 0.0 | 3.8 | 15.3 | 40.1 |
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 | 75.5 | 75.7 | 36.2 | 15.8 | 1.7 | 0.0 |
| Comfortable | 24.5 | 24.3 | 63.8 | 84.2 | 89.7 | 56.1 |
| Muggy | 0.0 | 0.0 | 0.0 | 0.0 | 8.5 | 40.3 |
| Oppressive | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 3.7 |
| Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|
| Dry | 0.0 | 0.0 | 0.1 | 7.4 | 40.9 | 71.2 |
| Comfortable | 21.7 | 33.0 | 70.1 | 91.6 | 59.1 | 28.8 |
| Muggy | 63.0 | 56.5 | 27.9 | 1.0 | 0.0 | 0.0 |
| Oppressive | 15.3 | 10.5 | 2.0 | 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 | 4.0 | 4.4 | 4.7 | 4.7 | 4.7 | 4.6 |
| 25th | 5.4 | 5.7 | 6.4 | 6.5 | 6.2 | 5.8 |
| 50th | 7.8 | 8.1 | 9.0 | 9.7 | 8.8 | 8.1 |
| 75th | 11.4 | 11.5 | 12.8 | 14.0 | 12.2 | 11.3 |
| 90th | 16.1 | 15.7 | 17.0 | 18.3 | 15.7 | 15.0 |
| Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|
| 10th | 4.5 | 4.1 | 4.4 | 4.1 | 4.1 | 4.1 |
| 25th | 5.6 | 5.3 | 5.7 | 5.6 | 5.4 | 5.3 |
| 50th | 7.3 | 7.0 | 7.8 | 8.1 | 7.6 | 7.5 |
| 75th | 9.9 | 9.6 | 10.7 | 11.4 | 11.4 | 11.0 |
| 90th | 12.7 | 12.3 | 13.9 | 15.2 | 15.6 | 14.8 |
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 | 12.2 | 16.7 | 16.8 | 16.8 | 15.5 | 11.6 |
| NorthEast | 3.9 | 7.1 | 8.9 | 11.5 | 10.9 | 8.6 |
| East | 7.6 | 8.4 | 13.8 | 12.9 | 14.0 | 12.6 |
| SouthEast | 9.5 | 9.0 | 13.1 | 11.5 | 13.3 | 15.2 |
| South | 19.1 | 17.1 | 17.2 | 14.2 | 17.5 | 23.2 |
| SouthWest | 6.6 | 6.6 | 3.7 | 4.6 | 6.2 | 6.0 |
| West | 13.5 | 11.1 | 7.7 | 8.9 | 9.1 | 8.1 |
| NorthWest | 27.7 | 24.0 | 18.8 | 19.6 | 13.4 | 14.6 |
| Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|
| North | 12.1 | 10.2 | 12.0 | 11.8 | 12.5 | 13.0 |
| NorthEast | 7.3 | 7.0 | 6.5 | 5.9 | 4.0 | 5.3 |
| East | 11.7 | 13.5 | 12.0 | 8.1 | 7.0 | 8.9 |
| SouthEast | 16.4 | 18.0 | 16.6 | 12.1 | 9.8 | 9.3 |
| South | 31.4 | 29.7 | 28.5 | 21.0 | 26.0 | 19.6 |
| SouthWest | 6.1 | 5.7 | 4.5 | 5.8 | 5.9 | 5.9 |
| West | 5.2 | 5.6 | 7.4 | 13.2 | 12.7 | 15.2 |
| NorthWest | 9.7 | 10.2 | 12.4 | 21.7 | 22.0 | 22.7 |