Dayton Weather in July
Average highs run from 79°F on July 1 to 80°F on July 31, and lows from 55°F to 57°F. Normal precipitation for the month is 4.12 in over about 12 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
- 80°F
- Average low
- 57°F
- Precipitation
- 4.12 in
- Record high
- 98°FJul 2, 1963
- Record low
- 38°FJul 3, 1962
- Chance of a freeze
- 0%
- Days of 90°F or more
- 2.8
- Daylight
- 15 h 22 min to 14 h 35 min
- Cloud cover
- 57%
- Humidity
- 80%
- Dew point
- 62°F
- Wind
- 4.3 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 | 79°F | 55°F | 96°F 1963 | 43°F 1978 | 42% | 0% |
| Jul 2 | 79°F | 55°F | 98°F 1963 | 39°F 1961 | 41% | 0% |
| Jul 3 | 80°F | 55°F | 97°F 1966 | 38°F 1962 | 41% | 0% |
| Jul 4 | 80°F | 56°F | 95°F 1966 | 41°F 1962 | 41% | 0% |
| Jul 5 | 80°F | 56°F | 95°F 2002 | 38°F 1961 | 40% | 0% |
| Jul 6 | 80°F | 56°F | 97°F 2010 | 40°F 1960 | 40% | 0% |
| Jul 7 | 80°F | 56°F | 96°F 2010 | 39°F 1965 | 40% | 0% |
| Jul 8 | 80°F | 56°F | 95°F 1973 | 43°F 1969 | 40% | 0% |
| Jul 9 | 80°F | 56°F | 95°F 1955 | 44°F 1969 | 40% | 0% |
| Jul 10 | 80°F | 56°F | 96°F 1955 | 42°F 1960 | 40% | 0% |
| Jul 11 | 80°F | 57°F | 92°F 1955 | 44°F 1986 | 39% | 0% |
| Jul 12 | 81°F | 57°F | 94°F 2024 | 44°F 1978 | 39% | 0% |
| Jul 13 | 81°F | 57°F | 93°F 1966 | 43°F 1971 | 39% | 0% |
| Jul 14 | 81°F | 57°F | 96°F 1995 | 42°F 2018 | 39% | 0% |
| Jul 15 | 81°F | 57°F | 97°F 1995 | 45°F 2017 | 39% | 0% |
| Jul 16 | 81°F | 57°F | 94°F 1968 | 43°F 1954 | 39% | 0% |
| Jul 17 | 81°F | 57°F | 95°F 1968 | 41°F 1956 | 39% | 0% |
| Jul 18 | 81°F | 57°F | 96°F 1982 | 45°F 1958 | 39% | 0% |
| Jul 19 | 81°F | 57°F | 96°F 1982 | 45°F 1956 | 39% | 0% |
| Jul 20 | 81°F | 57°F | 98°F 1991 | 42°F 1965 | 39% | 0% |
| Jul 21 | 81°F | 57°F | 97°F 1955 | 40°F 1966 | 39% | 0% |
| Jul 22 | 81°F | 57°F | 97°F 2011 | 44°F 1966 | 38% | 0% |
| Jul 23 | 81°F | 57°F | 97°F 2011 | 46°F 1976 | 38% | 0% |
| Jul 24 | 81°F | 57°F | 95°F 1955 | 45°F 1985 | 38% | 0% |
| Jul 25 | 81°F | 57°F | 96°F 1963 | 46°F 1957 | 38% | 0% |
| Jul 26 | 81°F | 57°F | 96°F 1963 | 46°F 1976 | 38% | 0% |
| Jul 27 | 80°F | 57°F | 95°F 1963 | 41°F 1966 | 38% | 0% |
| Jul 28 | 80°F | 57°F | 96°F 1963 | 46°F 1977 | 38% | 0% |
| Jul 29 | 80°F | 57°F | 94°F 1959 | 45°F 1965 | 38% | 0% |
| Jul 30 | 80°F | 57°F | 95°F 2025 | 42°F 1956 | 37% | 0% |
| Jul 31 | 80°F | 57°F | 93°F 1975 | 39°F 1964 | 37% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (EDT).
- July 1
- sunrise 5:05 AM, sunset 8:27 PM
- July 31
- sunrise 5:31 AM, sunset 8:06 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00173862 (Hollis), public domain. Records: NOAA GHCN-Daily, station USC00177479, 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.