|
Typical Helena March Weather 1991–2020 |
||
|---|---|---|
| Average daily high | 47.7 °F | |
| Average daily low | 24.3 °F | |
| Average monthly precipitation | 0.5 inches | |
| Average monthly snow | 4.5 inches | |
| Daily chance of precipitation | 22.1% | |
| Daily chance of snow | 11.8% | |
|
Helena March Weather Records 1893–2024 |
||
|---|---|---|
| Highest temperature | 78 °F | March 30, 2004 |
| Lowest temperature | -30 °F | March 4, 2019 |
| Highest daily low | 50 °F | March 15, 2015 |
| Lowest daily high | -10 °F | March 6, 1951 |
| Hottest average high temperature | 57.3 °F | 2015 |
| Coldest average high temperature | 29.1 °F | 1897 |
| Most daily precipitation | 0.8 inches | March 20, 1898 |
| Most monthly precipitation | 2.4 inches | 1898 |
| Most daily snow | 10.3 inches | March 5, 1932 |
| Most monthly snow | 26.3 inches | 1898 |
| Day | Average (°F) | Record (°F) | ||
|---|---|---|---|---|
| High | Low | High | Low | |
| March 1 | 41.7 | 19.5 | 63 | -15 |
| March 2 | 42.0 | 19.8 | 67 | -15 |
| March 3 | 42.2 | 20.0 | 68 | -20 |
| March 4 | 42.6 | 20.2 | 71 | -30 |
| March 5 | 43.0 | 20.4 | 73 | -27 |
| March 6 | 43.4 | 20.6 | 70 | -20 |
| March 7 | 43.8 | 20.9 | 66 | -24 |
| March 8 | 44.2 | 21.2 | 63 | -26 |
| March 9 | 44.6 | 21.5 | 68 | -19 |
| March 10 | 44.9 | 21.8 | 70 | -24 |
| March 11 | 45.4 | 22.1 | 69 | -16 |
| March 12 | 45.9 | 22.6 | 74 | -12 |
| March 13 | 46.4 | 23.1 | 69 | -14 |
| March 14 | 46.8 | 23.6 | 72 | -13 |
| March 15 | 47.2 | 24.0 | 72 | -20 |
| March 16 | 47.7 | 24.3 | 70 | -10 |
| March 17 | 48.2 | 24.7 | 71 | -9 |
| March 18 | 48.6 | 25.0 | 76 | -13 |
| March 19 | 48.9 | 25.3 | 71 | -8 |
| March 20 | 49.3 | 25.5 | 71 | -11 |
| March 21 | 49.8 | 25.9 | 73 | -11 |
| March 22 | 50.2 | 26.3 | 69 | -16 |
| March 23 | 50.6 | 26.7 | 74 | -10 |
| March 24 | 50.9 | 27.0 | 74 | -24 |
| March 25 | 51.2 | 27.2 | 74 | -30 |
| March 26 | 51.4 | 27.5 | 73 | -22 |
| March 27 | 51.6 | 27.7 | 76 | -11 |
| March 28 | 51.8 | 27.8 | 73 | -3 |
| March 29 | 52.0 | 28.0 | 77 | -10 |
| March 30 | 52.2 | 28.2 | 78 | -13 |
| March 31 | 52.4 | 28.4 | 75 | -3 |