| Month | Average (°F) | Record (°F) | Average (inches) | |||
|---|---|---|---|---|---|---|
| High ☀️ | Low 🌙 | High ☀️ | Low 🌙 | Precipitation 💧 | Snow ❄️ | |
| January | 40.6 | 24.6 | 73 | -21 | 3.4 | 2.0 |
| February | 46.0 | 27.9 | 78 | -19 | 2.8 | 2.1 |
| March | 55.4 | 36.0 | 90 | -3 | 4.1 | 1.3 |
| April | 66.8 | 46.1 | 91 | 21 | 5.1 | 0.0 |
| May | 76.3 | 57.1 | 98 | 31 | 4.9 | 0.0 |
| June | 84.9 | 66.3 | 106 | 40 | 4.3 | 0.0 |
| July | 87.4 | 68.7 | 109 | 50 | 4.2 | 0.0 |
| August | 86.8 | 67.0 | 104 | 44 | 3.2 | 0.0 |
| September | 81.5 | 59.7 | 107 | 29 | 3.2 | 0.0 |
| October | 70.1 | 47.7 | 96 | 22 | 3.2 | 0.2 |
| November | 56.5 | 37.4 | 84 | -1 | 3.8 | 0.1 |
| December | 46.0 | 30.0 | 77 | -16 | 3.5 | 1.4 |
| Entire year | 66.6 | 47.5 | 109 | -21 | 45.1 | 7.5 |
|
More Mt. Vernon Weather Records
1888–2024
|
||
|---|---|---|
| Highest daily low | 83 °F | July 24, 1901 |
| Lowest daily high | -7 °F | February 9, 1899 |
| Greatest daily range (Difference of high and low) |
58 °F | February 21, 1963 |
| Greatest difference in daily high over two conscutive days |
48 °F | Feb 21–22, 1963 |
| Most daily precipitation | 7.4 inches | April 29, 1996 |
| Most monthly precipitation | 17.5 inches | January 1937 |
| Most yearly precipitation | 65.3 inches | 1957 |
| Most yearly days with precipitation | 137 | 1985 |
| Earliest snow in season | October 29 | 1925 |
| Latest snow in season | April 26 | 1910 |
| Most daily snow | 14.0 inches | January 12, 1912 |
| Most monthly snow | 25.0 inches | January 1918 |
| Most yearly snow | 51.3 inches | 1912 |
| Most snow in a winter | 50.3 inches | 1911–1912 |
| Greatest snow accumulation | 26.0 inches | January 23, 1918 |
| Earliest freeze | September 26 | 1928 |
| Earliest day ≥ 90 °F | March 24 | 1929 |
| Earliest day ≥ 100 °F | June 9 | 1963 |
| Latest freeze | May 10 | 1966 |
| Latest day ≥ 90 °F | October 28 | 1900 |
| Latest day ≥ 100 °F | September 30 | 1953 |
| Most days in a year < 0 °F | 13 | 1963 |
| Most days in a year < 32 °F | 121 | 1960 |
| Most days in a year ≥ 80 °F | 155 | 2007 |
| Most days in a year ≥ 90 °F | 86 | 1901 |
| Most days in a year ≥ 100 °F | 20 | 1901 |
|
Mt. Vernon Weather Streaks
Most consecutive days...
|
||
|---|---|---|
| With precipitation | 10 days | Apr 16–25, 1973 |
| Without precipitation | 55 days | Oct 1 – Nov 24, 1903 |
| With snow | 3 days | Jan 6–8, 1996 |
| High temperature at or below freezing |
14 days | Jan 10–23, 1978 |
| High temperature ≥ 80 °F | 129 days | May 19 – Sep 24, 1921 |
| High temperature ≥ 90 °F | 26 days | Jun 12 – Jul 7, 1954 |
| High temperature ≥ 100 °F | 10 days | Jul 20–29, 1901 |
| Years | Station | Coordinates |
|---|---|---|
| 1888–2024 | Mt Vernon | location |