|
Typical Lewiston September Weather 1991–2020 |
||
|---|---|---|
| Average daily high | 79.1 °F | |
| Average daily low | 52.0 °F | |
| Average monthly precipitation | 0.6 inches | |
| Average monthly snow | none | |
|
Lewiston September Weather Records 1894–2023 |
||
|---|---|---|
| Highest temperature | 108 °F | September 7, 1944 |
| Lowest temperature | 28 °F | September 17, 1965 |
| Highest daily low | 70 °F | September 2, 2013 |
| Lowest daily high | 45 °F | September 24, 1934 |
| Hottest average temperature | 7.7 °F above average |
1990 |
| Coldest average temperature | -8.4 °F below average |
1985 |
| Most daily precipitation | 1.7 inches | September 14, 1955 |
| Most monthly precipitation | 4.4 inches | 1940 |
| Most daily snow | none | - |
| Most monthly snow | none | - |
| Day | Average (°F) | Record (°F) | ||
|---|---|---|---|---|
| High | Low | High | Low | |
| September 1 | 84.7 | 56.1 | 102 | 44 |
| September 2 | 84.2 | 55.8 | 103 | 43 |
| September 3 | 83.7 | 55.5 | 105 | 39 |
| September 4 | 83.3 | 55.2 | 103 | 39 |
| September 5 | 82.8 | 55.0 | 101 | 40 |
| September 6 | 82.4 | 54.6 | 103 | 36 |
| September 7 | 82.0 | 54.3 | 108 | 38 |
| September 8 | 81.7 | 54.0 | 106 | 37 |
| September 9 | 81.4 | 53.8 | 102 | 40 |
| September 10 | 81.0 | 53.5 | 103 | 33 |
| September 11 | 80.6 | 53.3 | 102 | 36 |
| September 12 | 80.2 | 53.0 | 103 | 36 |
| September 13 | 79.9 | 52.7 | 98 | 33 |
| September 14 | 79.6 | 52.3 | 99 | 32 |
| September 15 | 79.3 | 52.1 | 100 | 35 |
| September 16 | 78.9 | 51.9 | 101 | 35 |
| September 17 | 78.6 | 51.6 | 99 | 28 |
| September 18 | 78.1 | 51.3 | 101 | 35 |
| September 19 | 77.5 | 50.9 | 101 | 30 |
| September 20 | 77.0 | 50.5 | 95 | 34 |
| September 21 | 76.5 | 50.2 | 102 | 29 |
| September 22 | 76.0 | 49.8 | 99 | 34 |
| September 23 | 75.6 | 49.6 | 97 | 31 |
| September 24 | 75.2 | 49.3 | 100 | 34 |
| September 25 | 74.6 | 49.0 | 94 | 30 |
| September 26 | 74.0 | 48.6 | 95 | 30 |
| September 27 | 73.3 | 48.2 | 93 | 35 |
| September 28 | 72.7 | 47.8 | 95 | 33 |
| September 29 | 72.2 | 47.5 | 88 | 31 |
| September 30 | 71.7 | 47.1 | 89 | 30 |