| Month | Average (°F) | Record (°F) | Average (inches) | |||
|---|---|---|---|---|---|---|
| High ☀️ | Low 🌙 | High ☀️ | Low 🌙 | Precipitation 💧 | Snow ❄️ | |
| January | 38.8 | 22.5 | 75 | -21 | 2.6 | 3.5 |
| February | 43.4 | 24.6 | 79 | -22 | 2.6 | 3.1 |
| March | 53.8 | 33.4 | 92 | -10 | 3.9 | 0.8 |
| April | 65.3 | 43.7 | 91 | 17 | 5.0 | 0.0 |
| May | 74.1 | 54.4 | 99 | 29 | 5.0 | 0.0 |
| June | 82.7 | 63.1 | 105 | 36 | 4.5 | 0.0 |
| July | 86.1 | 67.1 | 114 | 46 | 3.7 | 0.0 |
| August | 85.3 | 64.7 | 111 | 42 | 3.5 | 0.0 |
| September | 78.9 | 56.0 | 105 | 23 | 3.0 | 0.0 |
| October | 67.7 | 44.4 | 96 | 18 | 3.4 | 0.2 |
| November | 53.9 | 34.2 | 86 | -5 | 4.0 | 0.4 |
| December | 43.0 | 25.9 | 78 | -19 | 2.8 | 2.5 |
| Entire year | 64.6 | 44.6 | 114 | -22 | 43.6 | 11.3 |
|
More Mt. Vernon Weather Records
1895–2024
|
||
|---|---|---|
| Highest daily low | 88 °F | September 11, 1936 |
| Lowest daily high | -4 °F | December 23, 1989 |
| Greatest daily range (Difference of high and low) |
66 °F | November 12, 1911 |
| Greatest difference in daily high over two conscutive days |
52 °F | Nov 12–13, 1911 |
| Most daily precipitation | 6.2 inches | August 16, 1946 |
| Most monthly precipitation | 14.4 inches | August 1946 |
| Most yearly precipitation | 64.5 inches | 2011 |
| Most yearly days with precipitation | 140 | 1984 |
| Earliest snow in season | October 20 | 1989 |
| Latest snow in season | April 24 | 1910 |
| Most daily snow | 14.0 inches | February 21, 1912 |
| Most monthly snow | 27.3 inches | January 1977 |
| Most yearly snow | 45.0 inches | 1912 |
| Most snow in a winter | 46.0 inches | 1911–1912 |
| Greatest snow accumulation | 20.0 inches | February 29, 1984 |
| Earliest freeze | September 23 | 1983 |
| Earliest day ≥ 90 °F | March 21 | 1907 |
| Earliest day ≥ 100 °F | June 2 | 1934 |
| Latest freeze | May 14 | 1895 |
| Latest day ≥ 90 °F | October 20 | 1963 |
| Latest day ≥ 100 °F | September 29 | 1953 |
| Most days in a year < 0 °F | 19 | 1977 |
| Most days in a year < 32 °F | 125 | 2013 |
| Most days in a year ≥ 80 °F | 155 | 1939 |
| Most days in a year ≥ 90 °F | 97 | 1901 |
| Most days in a year ≥ 100 °F | 46 | 1936 |
| Most days in a year ≥ 110 °F | 6 | 1936 |
|
Mt. Vernon Weather Streaks
Most consecutive days...
|
||
|---|---|---|
| With precipitation | 13 days | Sep 26 – Oct 8, 2023 |
| Without precipitation | 45 days | Aug 14 – Sep 27, 1908 |
| With snow | 5 days | Jan 29 – Feb 2, 1985 |
| High temperature at or below freezing |
19 days | Jan 6–24, 1977 |
| High temperature ≥ 80 °F | 96 days | Jun 3 – Sep 6, 1953 |
| High temperature ≥ 90 °F | 34 days | Jul 11 – Aug 13, 1916 |
| High temperature ≥ 100 °F | 18 days | Aug 11–28, 1936 |
| High temperature ≥ 110 °F | 4 days | Jul 12–15, 1936 |
| Years | Station | Coordinates |
|---|---|---|
| 1895–2024 | Mt Vernon 3 Ne | location |