Decatur Weather in July
Average highs run from 88°F on July 1 to 90°F on July 31, and lows from 66°F to 67°F. Normal precipitation for the month is 5.36 in over about 13 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
- 89°F
- Average low
- 67°F
- Precipitation
- 5.36 in
- Record high
- 107°FJul 16, 1980
- Record low
- 49°FJul 7, 1972
- Chance of a freeze
- 0%
- Days of 90°F or more
- 14.8
- Daylight
- 14 h 31 min to 13 h 57 min
- Cloud cover
- 59%
- Humidity
- 72%
- Dew point
- 67°F
- Wind
- 3.4 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 | 88°F | 66°F | 100°F 2012 | 53°F 1974 | 41% | 0% |
| Jul 2 | 88°F | 66°F | 104°F 2012 | 53°F 1976 | 41% | 0% |
| Jul 3 | 88°F | 66°F | 104°F 2012 | 58°F 1977 | 41% | 0% |
| Jul 4 | 89°F | 66°F | 98°F 2026 | 52°F 1967 | 41% | 0% |
| Jul 5 | 89°F | 67°F | 97°F 1969 | 53°F 1967 | 41% | 0% |
| Jul 6 | 89°F | 67°F | 98°F 2012 | 52°F 1964 | 41% | 0% |
| Jul 7 | 89°F | 67°F | 98°F 1977 | 49°F 1972 | 41% | 0% |
| Jul 8 | 89°F | 67°F | 100°F 1977 | 51°F 1972 | 41% | 0% |
| Jul 9 | 89°F | 67°F | 99°F 1980 | 55°F 1984 | 41% | 0% |
| Jul 10 | 89°F | 67°F | 98°F 1980 | 52°F 1963 | 41% | 0% |
| Jul 11 | 89°F | 67°F | 100°F 1980 | 52°F 1961 | 41% | 0% |
| Jul 12 | 89°F | 67°F | 104°F 1980 | 53°F 1963 | 40% | 0% |
| Jul 13 | 89°F | 67°F | 101°F 1980 | 57°F 1963 | 40% | 0% |
| Jul 14 | 89°F | 67°F | 101°F 1966 | 55°F 1964 | 40% | 0% |
| Jul 15 | 89°F | 67°F | 101°F 1980 | 51°F 1967 | 40% | 0% |
| Jul 16 | 89°F | 67°F | 107°F 1980 | 50°F 1967 | 40% | 0% |
| Jul 17 | 89°F | 67°F | 106°F 1980 | 56°F 1970 | 39% | 0% |
| Jul 18 | 89°F | 67°F | 100°F 1980 | 53°F 1967 | 39% | 0% |
| Jul 19 | 89°F | 67°F | 99°F 1969 | 54°F 1967 | 39% | 0% |
| Jul 20 | 89°F | 67°F | 101°F 1986 | 55°F 2009 | 39% | 0% |
| Jul 21 | 89°F | 67°F | 98°F 1986 | 56°F 1971 | 38% | 0% |
| Jul 22 | 89°F | 67°F | 98°F 1983 | 57°F 1962 | 38% | 0% |
| Jul 23 | 89°F | 67°F | 98°F 1983 | 57°F 1962 | 38% | 0% |
| Jul 24 | 89°F | 67°F | 97°F 2016 | 55°F 1962 | 37% | 0% |
| Jul 25 | 89°F | 67°F | 97°F 1987 | 54°F 1962 | 37% | 0% |
| Jul 26 | 90°F | 67°F | 98°F 1993 | 58°F 2019 | 37% | 0% |
| Jul 27 | 90°F | 67°F | 99°F 1993 | 52°F 1962 | 36% | 0% |
| Jul 28 | 90°F | 67°F | 98°F 1966 | 52°F 1962 | 36% | 0% |
| Jul 29 | 90°F | 67°F | 100°F 1986 | 58°F 2013 | 36% | 0% |
| Jul 30 | 90°F | 67°F | 100°F 1986 | 55°F 1965 | 36% | 0% |
| Jul 31 | 90°F | 67°F | 101°F 1980 | 53°F 1965 | 35% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (EDT).
- July 1
- sunrise 6:28 AM, sunset 8:59 PM
- July 31
- sunrise 6:47 AM, sunset 8:44 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00402388 (Decatur 7NE), public domain. Records: NOAA GHCN-Daily, station USC00402360, 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.