Weather Reports for the city of Helmville in Montana
snow
rain
temp
wind
humidity| Jan | Feb | Mar | Apr | May | Jun | |
|---|---|---|---|---|---|---|
| Average High (°F) | 35.8 | 37.1 | 49.8 | 58.7 | 67.4 | 77.8 |
| Average Low (°F) | 15.5 | 15.8 | 23.7 | 30.4 | 38.6 | 46.4 |
| All Time High (°F) | 67.3 | 66.9 | 75.9 | 84.9 | 91.9 | 104.0 |
| All Time Low (°F) | -22.9 | -27.0 | -31.9 | -1.5 | 17.2 | 31.8 |
| Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|
| Average High (°F) | 88.2 | 87.2 | 75.9 | 59.3 | 45.6 | 34.7 |
| Average Low (°F) | 51.9 | 51.1 | 42.9 | 32.0 | 23.4 | 14.9 |
| All Time High (°F) | 102.2 | 104.0 | 99.0 | 87.1 | 75.9 | 70.0 |
| All Time Low (°F) | 31.8 | 34.5 | 10.9 | -7.1 | -11.9 | -30.5 |
| Jan | Feb | Mar | Apr | May | Jun | |
|---|---|---|---|---|---|---|
| Percent of Rainy Days | 0.1 | 0.1 | 0.1 | 0.2 | 0.3 | 0.3 |
| Avg. Rainfall (in) on Rainy Day | 0.1 | 0.1 | 0.1 | 0.1 | 0.2 | 0.2 |
| All Time Rainfall (in) on Rainy Day | 0.5 | 0.5 | 0.5 | 1.0 | 1.2 | 1.5 |
| 30 Day Rain Accumulation | 0.6 | 0.8 | 0.6 | 1.0 | 2.0 | 1.9 |
| All Time 30 Day Rain Accumulation | 2.4 | 2.6 | 2.0 | 2.9 | 3.7 | 6.7 |
| Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|
| Percent of Rainy Days | 0.2 | 0.1 | 0.1 | 0.2 | 0.1 | 0.1 |
| Avg. Rainfall (in) on Rainy Day | 0.1 | 0.2 | 0.2 | 0.1 | 0.1 | 0.1 |
| All Time Rainfall (in) on Rainy Day | 1.3 | 1.0 | 1.3 | 0.6 | 1.0 | 0.4 |
| 30 Day Rain Accumulation | 0.7 | 0.8 | 0.9 | 0.9 | 0.8 | 0.8 |
| All Time 30 Day Rain Accumulation | 2.4 | 2.8 | 3.0 | 3.0 | 3.1 | 2.1 |
| Jan | Feb | Mar | Apr | May | Jun | |
|---|---|---|---|---|---|---|
| Percent of Days with Snowfall | 0.2 | 0.3 | 0.1 | 0.1 | 0.0 | 0.0 |
| Avg. Snowfall Depth (in) | 1.5 | 1.8 | 0.7 | 0.5 | 0.9 | 0.0 |
| 30 Day Snowfall Total (in) | 8.3 | 14.5 | 3.3 | 1.8 | 1.0 | 0.0 |
| All Time Snowfall Depth (in) | 42.0 | 26.0 | 8.8 | 5.5 | 6.4 | 0.0 |
| All Time 30 Day Snowfall Total (in) | 53.3 | 105.0 | 15.1 | 9.3 | 13.7 | 0.0 |
| Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|
| Percent of Days with Snowfall | 0.0 | 0.0 | 0.0 | 0.1 | 0.2 | 0.2 |
| Avg. Snowfall Depth (in) | 0.0 | 0.0 | 1.5 | 1.3 | 1.6 | 1.6 |
| 30 Day Snowfall Total (in) | 0.0 | 0.0 | 0.6 | 2.6 | 7.3 | 11.6 |
| All Time Snowfall Depth (in) | 0.0 | 0.0 | 6.9 | 17.4 | 14.8 | 26.0 |
| All Time 30 Day Snowfall Total (in) | 0.0 | 0.0 | 11.6 | 22.2 | 34.0 | 62.6 |
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 | 76.1 | 75.9 | 57.0 | 34.5 | 7.8 | 0.4 |
| Comfortable | 23.9 | 24.1 | 43.0 | 65.5 | 92.2 | 99.6 |
| 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 | 0.2 | 0.4 | 2.8 | 16.5 | 54.5 | 79.0 |
| Comfortable | 99.7 | 99.3 | 97.2 | 83.5 | 45.5 | 21.0 |
| Muggy | 0.1 | 0.2 | 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 | 3.4 | 3.4 | 3.4 | 3.4 | 3.8 | 3.4 |
| 25th | 3.8 | 4.3 | 4.7 | 5.0 | 5.2 | 5.1 |
| 50th | 5.0 | 5.8 | 6.4 | 7.3 | 7.1 | 7.2 |
| 75th | 8.0 | 9.2 | 9.7 | 10.6 | 10.3 | 10.3 |
| 90th | 12.8 | 14.3 | 13.9 | 13.9 | 13.4 | 13.3 |
| Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|
| 10th | 4.0 | 3.4 | 3.4 | 3.4 | 3.4 | 3.4 |
| 25th | 5.3 | 4.8 | 4.7 | 4.2 | 4.0 | 3.8 |
| 50th | 7.4 | 6.9 | 6.2 | 5.8 | 5.4 | 5.1 |
| 75th | 10.1 | 9.6 | 9.1 | 8.4 | 8.4 | 8.1 |
| 90th | 12.9 | 12.7 | 12.5 | 12.3 | 12.9 | 13.2 |
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 | 13.3 | 17.5 | 16.2 | 19.1 | 21.3 | 17.2 |
| NorthEast | 6.3 | 6.8 | 6.1 | 5.9 | 7.4 | 5.9 |
| East | 9.1 | 9.1 | 7.5 | 6.7 | 8.4 | 7.1 |
| SouthEast | 8.3 | 7.4 | 6.3 | 5.8 | 6.4 | 5.4 |
| South | 8.5 | 5.7 | 7.6 | 5.8 | 5.3 | 6.5 |
| SouthWest | 9.1 | 7.3 | 9.1 | 7.3 | 6.4 | 7.8 |
| West | 31.5 | 30.9 | 31.5 | 31.5 | 26.5 | 31.8 |
| NorthWest | 13.9 | 15.2 | 15.6 | 17.9 | 18.0 | 18.3 |
| Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|
| North | 16.8 | 17.2 | 16.9 | 17.9 | 12.8 | 14.0 |
| NorthEast | 7.1 | 6.4 | 6.3 | 4.4 | 5.0 | 5.7 |
| East | 7.7 | 8.1 | 7.7 | 6.3 | 7.3 | 8.4 |
| SouthEast | 6.4 | 8.0 | 7.2 | 7.6 | 8.6 | 8.9 |
| South | 8.5 | 7.3 | 6.3 | 7.4 | 9.1 | 8.8 |
| SouthWest | 8.1 | 8.0 | 8.5 | 8.8 | 9.7 | 9.3 |
| West | 27.2 | 26.5 | 29.7 | 31.4 | 32.6 | 30.9 |
| NorthWest | 18.2 | 18.5 | 17.2 | 16.3 | 14.7 | 14.0 |