Weather Reports for the city of Acton in Montana
snow
rain
temp
wind
humidity| Jan | Feb | Mar | Apr | May | Jun | |
|---|---|---|---|---|---|---|
| Average High (°F) | 38.8 | 36.1 | 49.7 | 57.3 | 66.2 | 78.0 |
| Average Low (°F) | 16.9 | 13.7 | 23.8 | 30.0 | 40.0 | 48.6 |
| All Time High (°F) | 66.9 | 69.1 | 80.1 | 87.1 | 93.9 | 105.1 |
| All Time Low (°F) | -20.7 | -27.8 | -27.4 | -0.8 | 16.2 | 31.8 |
| Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|
| Average High (°F) | 87.6 | 86.1 | 75.9 | 60.4 | 47.9 | 37.8 |
| Average Low (°F) | 54.9 | 52.8 | 45.0 | 33.9 | 24.7 | 17.1 |
| All Time High (°F) | 107.1 | 102.9 | 102.0 | 91.0 | 73.9 | 69.1 |
| All Time Low (°F) | 36.5 | 25.9 | 21.0 | -6.7 | -14.1 | -21.5 |
| Jan | Feb | Mar | Apr | May | Jun | |
|---|---|---|---|---|---|---|
| Percent of Rainy Days | 0.0 | 0.0 | 0.1 | 0.2 | 0.4 | 0.4 |
| Avg. Rainfall (in) on Rainy Day | 0.1 | 0.0 | 0.1 | 0.2 | 0.2 | 0.2 |
| All Time Rainfall (in) on Rainy Day | 0.3 | 0.3 | 0.7 | 1.0 | 3.3 | 2.2 |
| 30 Day Rain Accumulation | 0.4 | 0.5 | 0.5 | 1.3 | 2.7 | 2.0 |
| All Time 30 Day Rain Accumulation | 1.0 | 2.1 | 2.3 | 3.4 | 9.6 | 5.4 |
| Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|
| Percent of Rainy Days | 0.3 | 0.2 | 0.2 | 0.2 | 0.1 | 0.0 |
| Avg. Rainfall (in) on Rainy Day | 0.1 | 0.2 | 0.2 | 0.1 | 0.1 | 0.0 |
| All Time Rainfall (in) on Rainy Day | 0.9 | 1.3 | 1.3 | 2.0 | 0.8 | 0.1 |
| 30 Day Rain Accumulation | 1.0 | 1.3 | 1.1 | 1.1 | 0.5 | 0.4 |
| All Time 30 Day Rain Accumulation | 2.9 | 2.8 | 3.6 | 3.5 | 1.9 | 2.0 |
| Jan | Feb | Mar | Apr | May | Jun | |
|---|---|---|---|---|---|---|
| Percent of Days with Snowfall | 0.1 | 0.2 | 0.1 | 0.2 | 0.1 | 0.0 |
| Avg. Snowfall Depth (in) | 2.2 | 2.3 | 1.0 | 1.0 | 0.3 | 0.0 |
| 30 Day Snowfall Total (in) | 7.7 | 13.5 | 3.9 | 4.3 | 0.4 | 0.0 |
| All Time Snowfall Depth (in) | 18.5 | 18.4 | 10.5 | 6.7 | 2.8 | 0.0 |
| All Time 30 Day Snowfall Total (in) | 28.0 | 72.3 | 28.0 | 17.3 | 5.4 | 0.0 |
| Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|
| Percent of Days with Snowfall | 0.0 | 0.0 | 0.0 | 0.1 | 0.1 | 0.1 |
| Avg. Snowfall Depth (in) | 0.0 | 0.0 | 0.3 | 1.1 | 1.7 | 2.4 |
| 30 Day Snowfall Total (in) | 0.0 | 0.0 | 0.2 | 3.0 | 5.9 | 10.3 |
| All Time Snowfall Depth (in) | 0.0 | 0.0 | 1.4 | 7.5 | 14.0 | 35.0 |
| All Time 30 Day Snowfall Total (in) | 0.0 | 0.0 | 1.6 | 25.5 | 38.8 | 66.3 |
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 | 88.3 | 89.9 | 66.1 | 38.8 | 5.8 | 0.1 |
| Comfortable | 11.7 | 10.1 | 33.9 | 61.2 | 94.2 | 99.9 |
| Muggy | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Oppressive | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|
| Dry | 0.0 | 0.1 | 2.4 | 22.3 | 66.6 | 89.8 |
| Comfortable | 99.2 | 99.9 | 97.6 | 77.7 | 33.4 | 10.2 |
| Muggy | 0.8 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Oppressive | 0.0 | 0.0 | 0.0 | 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 | 4.4 | 4.5 | 4.6 | 4.7 | 4.7 | 4.7 |
| 25th | 6.1 | 5.9 | 6.2 | 6.6 | 6.9 | 6.6 |
| 50th | 10.3 | 9.8 | 9.2 | 9.5 | 9.2 | 8.9 |
| 75th | 16.0 | 15.1 | 13.3 | 13.6 | 12.2 | 12.2 |
| 90th | 21.1 | 20.1 | 18.1 | 18.0 | 15.5 | 15.8 |
| Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|
| 10th | 4.7 | 4.7 | 4.7 | 4.5 | 4.0 | 4.0 |
| 25th | 6.6 | 6.4 | 6.0 | 5.8 | 5.8 | 5.8 |
| 50th | 8.8 | 8.6 | 8.6 | 9.1 | 9.5 | 9.7 |
| 75th | 11.5 | 11.5 | 11.8 | 13.1 | 14.0 | 15.2 |
| 90th | 15.0 | 14.9 | 15.4 | 17.8 | 18.6 | 20.1 |
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 | 16.6 | 23.4 | 22.2 | 26.4 | 23.0 | 19.7 |
| NorthEast | 8.8 | 13.1 | 10.2 | 10.5 | 13.2 | 9.3 |
| East | 3.8 | 5.7 | 6.2 | 6.2 | 10.4 | 8.8 |
| SouthEast | 3.0 | 3.7 | 4.3 | 5.2 | 8.4 | 6.9 |
| South | 6.7 | 7.4 | 8.5 | 8.1 | 8.4 | 8.6 |
| SouthWest | 27.2 | 19.2 | 16.3 | 12.3 | 10.8 | 13.7 |
| West | 23.9 | 18.0 | 20.2 | 16.8 | 13.5 | 19.2 |
| NorthWest | 10.1 | 9.4 | 12.1 | 14.3 | 12.2 | 13.7 |
| Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|
| North | 20.2 | 19.7 | 19.3 | 21.3 | 19.7 | 17.2 |
| NorthEast | 11.7 | 10.6 | 11.4 | 7.9 | 7.1 | 8.1 |
| East | 8.6 | 7.3 | 6.5 | 4.9 | 3.3 | 4.3 |
| SouthEast | 7.2 | 6.4 | 5.1 | 4.7 | 3.8 | 3.9 |
| South | 11.5 | 10.9 | 9.9 | 9.8 | 8.1 | 8.2 |
| SouthWest | 15.8 | 17.8 | 19.1 | 19.3 | 23.7 | 27.3 |
| West | 14.0 | 15.6 | 16.2 | 20.0 | 23.2 | 22.4 |
| NorthWest | 10.9 | 11.6 | 12.5 | 12.1 | 11.0 | 8.6 |