Dayton Weather in July
Average highs run from 84°F on July 1 to 84°F on July 31, and lows from 62°F to 63°F. Normal precipitation for the month is 4.80 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
- 84°F
- Average low
- 63°F
- Precipitation
- 4.80 in
- Record high
- 109°FJul 14, 1936
- Record low
- 39°FJul 16, 1911
- Chance of a freeze
- 0%
- Days of 90°F or more
- 6.5
- Daylight
- 15 h 13 min to 14 h 29 min
- Cloud cover
- 50%
- Humidity
- 73%
- Dew point
- 64°F
- Wind
- 8.7 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 | 84°F | 62°F | 101°F 1925 | 43°F 1924 | 38% | 0% |
| Jul 2 | 84°F | 62°F | 102°F 1911 | 43°F 1932 | 37% | 0% |
| Jul 3 | 84°F | 62°F | 101°F 1936 | 43°F 1924 | 37% | 0% |
| Jul 4 | 84°F | 62°F | 106°F 1936 | 45°F 1922 | 37% | 0% |
| Jul 5 | 84°F | 62°F | 107°F 1911 | 43°F 1972 | 37% | 0% |
| Jul 6 | 84°F | 62°F | 102°F 1948 | 47°F 1950 | 36% | 0% |
| Jul 7 | 84°F | 63°F | 100°F 1980 | 45°F 1984 | 36% | 0% |
| Jul 8 | 84°F | 63°F | 100°F 1894 | 45°F 1908 | 36% | 0% |
| Jul 9 | 84°F | 63°F | 102°F 1930 | 47°F 1953 | 36% | 0% |
| Jul 10 | 84°F | 63°F | 102°F 1930 | 45°F 1996 | 36% | 0% |
| Jul 11 | 84°F | 63°F | 103°F 1936 | 41°F 1926 | 36% | 0% |
| Jul 12 | 84°F | 63°F | 104°F 1914 | 49°F 1941 | 35% | 0% |
| Jul 13 | 84°F | 63°F | 106°F 1936 | 44°F 1940 | 35% | 0% |
| Jul 14 | 84°F | 63°F | 109°F 1936 | 42°F 1926 | 35% | 0% |
| Jul 15 | 84°F | 63°F | 105°F 1936 | 42°F 1930 | 35% | 0% |
| Jul 16 | 84°F | 63°F | 104°F 1936 | 39°F 1911 | 35% | 0% |
| Jul 17 | 84°F | 63°F | 105°F 1936 | 47°F 1976 | 35% | 0% |
| Jul 18 | 84°F | 63°F | 104°F 1940 | 46°F 1914 | 35% | 0% |
| Jul 19 | 84°F | 63°F | 104°F 1940 | 47°F 1911 | 35% | 0% |
| Jul 20 | 84°F | 63°F | 104°F 1934 | 48°F 1970 | 35% | 0% |
| Jul 21 | 84°F | 63°F | 101°F 1934 | 46°F 1992 | 35% | 0% |
| Jul 22 | 84°F | 63°F | 103°F 1934 | 42°F 1947 | 35% | 0% |
| Jul 23 | 84°F | 63°F | 101°F 1940 | 46°F 1925 | 35% | 0% |
| Jul 24 | 84°F | 63°F | 107°F 1940 | 46°F 1906 | 35% | 0% |
| Jul 25 | 84°F | 63°F | 102°F 1934 | 42°F 1911 | 35% | 0% |
| Jul 26 | 84°F | 63°F | 108°F 1894 | 48°F 1946 | 35% | 0% |
| Jul 27 | 84°F | 63°F | 107°F 1930 | 47°F 1971 | 35% | 0% |
| Jul 28 | 84°F | 63°F | 101°F 1917 | 43°F 1925 | 35% | 0% |
| Jul 29 | 84°F | 63°F | 102°F 1919 | 46°F 1952 | 35% | 0% |
| Jul 30 | 84°F | 63°F | 104°F 1919 | 43°F 1936 | 35% | 0% |
| Jul 31 | 84°F | 63°F | 104°F 1988 | 45°F 1936 | 35% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (CDT).
- July 1
- sunrise 5:44 AM, sunset 8:57 PM
- July 31
- sunrise 6:08 AM, sunset 8:37 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00130807 (Boone), public domain. Records: NOAA GHCN-Daily, station USC00138806, 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.