|
Typical Helena October Weather 1991–2020 |
||
|---|---|---|
| Average daily high | 57.5 °F | |
| Average daily low | 32.8 °F | |
| Average monthly precipitation | 0.8 inches | |
| Average monthly snow | 2.8 inches | |
| Daily chance of precipitation | 22.6% | |
| Daily chance of snow | 5.0% | |
|
Helena October Weather Records 1893–2024 |
||
|---|---|---|
| Highest temperature | 87 °F | October 10, 2015 |
| Lowest temperature | -8 °F | October 30, 1991 |
| Highest daily low | 61 °F | October 3, 1917 |
| Lowest daily high | 5 °F | October 31, 1935 |
| Hottest average high temperature | 65.0 °F | 1944 |
| Coldest average high temperature | 43.4 °F | 1925 |
| Most daily precipitation | 1.2 inches | October 12, 1920 |
| Most monthly precipitation | 2.8 inches | 1925 |
| Most daily snow | 9.5 inches | October 5, 1914 |
| Most monthly snow | 27.7 inches | 1925 |
| Day | Average (°F) | Record (°F) | ||
|---|---|---|---|---|
| High | Low | High | Low | |
| October 1 | 65.2 | 38.1 | 87 | 15 |
| October 2 | 64.8 | 37.7 | 85 | 19 |
| October 3 | 64.4 | 37.4 | 85 | 18 |
| October 4 | 64.0 | 37.1 | 84 | 21 |
| October 5 | 63.7 | 36.8 | 84 | 23 |
| October 6 | 63.4 | 36.6 | 84 | 19 |
| October 7 | 63.0 | 36.4 | 80 | 16 |
| October 8 | 62.6 | 36.1 | 82 | 17 |
| October 9 | 62.1 | 35.8 | 84 | 6 |
| October 10 | 61.5 | 35.3 | 87 | 9 |
| October 11 | 60.8 | 34.9 | 83 | 14 |
| October 12 | 60.2 | 34.5 | 81 | 8 |
| October 13 | 59.6 | 34.1 | 79 | 13 |
| October 14 | 58.9 | 33.7 | 81 | 12 |
| October 15 | 58.1 | 33.2 | 83 | 16 |
| October 16 | 57.4 | 32.7 | 80 | 12 |
| October 17 | 56.9 | 32.4 | 80 | 11 |
| October 18 | 56.4 | 32.0 | 82 | 7 |
| October 19 | 56.0 | 31.6 | 82 | 11 |
| October 20 | 55.6 | 31.3 | 81 | 18 |
| October 21 | 55.0 | 30.9 | 82 | 15 |
| October 22 | 54.5 | 30.6 | 78 | 10 |
| October 23 | 54.0 | 30.2 | 75 | 6 |
| October 24 | 53.5 | 29.9 | 72 | -1 |
| October 25 | 52.9 | 29.7 | 79 | -4 |
| October 26 | 52.5 | 29.3 | 76 | -6 |
| October 27 | 52.1 | 28.9 | 76 | 3 |
| October 28 | 51.5 | 28.5 | 76 | 3 |
| October 29 | 51.1 | 28.1 | 74 | -2 |
| October 30 | 50.7 | 27.9 | 72 | -8 |
| October 31 | 50.3 | 27.6 | 68 | -5 |