Decatur Weather in July
Average highs run from 94°F on July 1 to 97°F on July 31, and lows from 73°F to 75°F. Normal precipitation for the month is 2.52 in over about 5 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
- 95°F
- Average low
- 74°F
- Precipitation
- 2.52 in
- Record high
- 111°FJul 20, 2018
- Record low
- 55°FJul 8, 1905
- Chance of a freeze
- 0%
- Days of 90°F or more
- 25.8
- Daylight
- 14 h 19 min to 13 h 47 min
- Cloud cover
- 39%
- Humidity
- 56%
- Dew point
- 66°F
- Wind
- 9.2 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 | 94°F | 73°F | 101°F 2018 | 63°F 1907 | 20% | 0% |
| Jul 2 | 94°F | 73°F | 102°F 2018 | 61°F 1907 | 19% | 0% |
| Jul 3 | 94°F | 73°F | 103°F 2018 | 56°F 2013 | 19% | 0% |
| Jul 4 | 94°F | 73°F | 104°F 2018 | 56°F 2013 | 19% | 0% |
| Jul 5 | 94°F | 73°F | 101°F 2022 | 60°F 1907 | 19% | 0% |
| Jul 6 | 94°F | 73°F | 103°F 2022 | 63°F 1907 | 18% | 0% |
| Jul 7 | 94°F | 73°F | 103°F 2022 | 62°F 2006 | 18% | 0% |
| Jul 8 | 95°F | 73°F | 106°F 2022 | 55°F 1905 | 18% | 0% |
| Jul 9 | 95°F | 74°F | 104°F 2011 | 63°F 1907 | 17% | 0% |
| Jul 10 | 95°F | 74°F | 101°F 2009 | 58°F 1905 | 17% | 0% |
| Jul 11 | 95°F | 74°F | 103°F 2009 | 65°F 1905 | 17% | 0% |
| Jul 12 | 95°F | 74°F | 102°F 2009 | 64°F 1907 | 17% | 0% |
| Jul 13 | 95°F | 74°F | 105°F 2022 | 59°F 1907 | 17% | 0% |
| Jul 14 | 95°F | 74°F | 103°F 2009 | 63°F 1907 | 16% | 0% |
| Jul 15 | 96°F | 74°F | 102°F 2009 | 64°F 1907 | 16% | 0% |
| Jul 16 | 96°F | 74°F | 103°F 2011 | 61°F 1907 | 16% | 0% |
| Jul 17 | 96°F | 74°F | 104°F 2018 | 65°F 2014 | 16% | 0% |
| Jul 18 | 96°F | 74°F | 109°F 2022 | 62°F 2014 | 16% | 0% |
| Jul 19 | 96°F | 75°F | 110°F 2022 | 60°F 1910 | 16% | 0% |
| Jul 20 | 96°F | 75°F | 111°F 2018 | 63°F 1910 | 16% | 0% |
| Jul 21 | 96°F | 75°F | 111°F 2018 | 61°F 1910 | 16% | 0% |
| Jul 22 | 96°F | 75°F | 111°F 2018 | 60°F 1907 | 16% | 0% |
| Jul 23 | 96°F | 75°F | 111°F 2018 | 59°F 1907 | 16% | 0% |
| Jul 24 | 96°F | 75°F | 103°F 2018 | 61°F 1907 | 16% | 0% |
| Jul 25 | 96°F | 75°F | 104°F 2022 | 56°F 1910 | 16% | 0% |
| Jul 26 | 96°F | 75°F | 105°F 1909 | 62°F 2007 | 16% | 0% |
| Jul 27 | 97°F | 75°F | 105°F 2018 | 63°F 2004 | 16% | 0% |
| Jul 28 | 97°F | 75°F | 107°F 1909 | 56°F 1910 | 16% | 0% |
| Jul 29 | 97°F | 75°F | 107°F 1909 | 57°F 1910 | 17% | 0% |
| Jul 30 | 97°F | 75°F | 106°F 2021 | 62°F 1907 | 17% | 0% |
| Jul 31 | 97°F | 75°F | 107°F 2021 | 61°F 2005 | 17% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (CDT).
- July 1
- sunrise 6:25 AM, sunset 8:44 PM
- July 31
- sunrise 6:43 AM, sunset 8:30 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00412334 (Decatur), public domain. Records: NOAA GHCN-Daily, station USC00412334, 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.