Mount Vernon Weather in July
Average highs run from 85°F on July 1 to 84°F on July 31, and lows from 64°F to 63°F. Normal precipitation for the month is 4.56 in over about 10 wet days.
July day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
July at a glance
- Average high
- 85°F
- Average low
- 64°F
- Precipitation
- 4.56 in
- Record high
- 108°FJul 14, 1936
- Record low
- 43°FJul 2, 1904
- Chance of a freeze
- 0%
- Days of 90°F or more
- 5.2
- Daylight
- 15 h 02 min to 14 h 21 min
- Cloud cover
- 51%
- Humidity
- 77%
- Dew point
- 65°F
- Wind
- 7.6 mph
Every day of the month
A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.
| Date | Normal high | Normal low | Record high | Record low | Chance wet | Chance of snow |
|---|---|---|---|---|---|---|
| Jul 1 | 85°F | 64°F | 98°F 1910 | 44°F 1937 | 36% | 0% |
| Jul 2 | 85°F | 64°F | 102°F 1911 | 43°F 1904 | 36% | 0% |
| Jul 3 | 85°F | 64°F | 102°F 1911 | 47°F 1930 | 35% | 0% |
| Jul 4 | 85°F | 64°F | 102°F 1911 | 46°F 1968 | 35% | 0% |
| Jul 5 | 85°F | 64°F | 101°F 1921 | 46°F 2001 | 35% | 0% |
| Jul 6 | 85°F | 64°F | 100°F 1921 | 46°F 1972 | 35% | 0% |
| Jul 7 | 85°F | 64°F | 100°F 1936 | 46°F 1894 | 34% | 0% |
| Jul 8 | 85°F | 64°F | 105°F 1936 | 46°F 1894 | 34% | 0% |
| Jul 9 | 85°F | 64°F | 102°F 1936 | 46°F 1899 | 34% | 0% |
| Jul 10 | 85°F | 64°F | 104°F 1936 | 45°F 1895 | 34% | 0% |
| Jul 11 | 85°F | 64°F | 103°F 1914 | 44°F 1898 | 34% | 0% |
| Jul 12 | 85°F | 64°F | 104°F 1936 | 48°F 1918 | 33% | 0% |
| Jul 13 | 85°F | 64°F | 105°F 1936 | 48°F 1900 | 33% | 0% |
| Jul 14 | 85°F | 64°F | 108°F 1936 | 45°F 1999 | 33% | 0% |
| Jul 15 | 85°F | 64°F | 101°F 1936 | 45°F 1967 | 33% | 0% |
| Jul 16 | 85°F | 64°F | 101°F 1980 | 47°F 1945 | 33% | 0% |
| Jul 17 | 85°F | 64°F | 100°F 1921 | 47°F 1967 | 33% | 0% |
| Jul 18 | 85°F | 64°F | 102°F 1921 | 50°F 1911 | 32% | 0% |
| Jul 19 | 85°F | 64°F | 101°F 1932 | 48°F 1914 | 32% | 0% |
| Jul 20 | 85°F | 64°F | 101°F 1901 | 46°F 1929 | 32% | 0% |
| Jul 21 | 85°F | 64°F | 104°F 1901 | 44°F 2000 | 32% | 0% |
| Jul 22 | 85°F | 64°F | 104°F 1934 | 45°F 1947 | 32% | 0% |
| Jul 23 | 85°F | 64°F | 101°F 1934 | 45°F 1947 | 32% | 0% |
| Jul 24 | 85°F | 63°F | 106°F 1934 | 43°F 2000 | 31% | 0% |
| Jul 25 | 85°F | 63°F | 106°F 1934 | 48°F 1905 | 31% | 0% |
| Jul 26 | 85°F | 63°F | 102°F 1901 | 47°F 1911 | 31% | 0% |
| Jul 27 | 85°F | 63°F | 102°F 1916 | 49°F 1920 | 31% | 0% |
| Jul 28 | 84°F | 63°F | 101°F 1916 | 51°F 1925 | 31% | 0% |
| Jul 29 | 84°F | 63°F | 101°F 1916 | 47°F 1928 | 31% | 0% |
| Jul 30 | 84°F | 63°F | 101°F 1999 | 48°F 1965 | 31% | 0% |
| Jul 31 | 84°F | 63°F | 100°F 1913 | 44°F 1895 | 30% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (EDT).
- July 1
- sunrise 6:16 AM, sunset 9:18 PM
- July 31
- sunrise 6:39 AM, sunset 9:00 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00129138 (Wabash), public domain. Records: NOAA GHCN-Daily, station USC00125337, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.