Jefferson County Weather in August
Average highs run from 88°F on August 1 to 84°F on August 31, and lows from 65°F to 59°F. Normal precipitation for the month is 3.55 in over about 9 wet days.
August day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
August at a glance
- Average high
- 86°F
- Average low
- 63°F
- Precipitation
- 3.55 in
- Record high
- 106°FAug 2, 1987
- Record low
- 41°FAug 28, 1988
- Chance of a freeze
- 0%
- Days of 90°F or more
- 11.6
- Daylight
- 14 h 16 min to 13 h 07 min
- Cloud cover
- 49%
- Humidity
- 65%
- Dew point
- 62°F
- Wind
- 8.9 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 |
|---|---|---|---|---|---|---|
| Aug 1 | 88°F | 65°F | 103°F 1987 | 55°F 1986 | 31% | 0% |
| Aug 2 | 88°F | 65°F | 106°F 1987 | 50°F 1986 | 31% | 0% |
| Aug 3 | 88°F | 65°F | 104°F 1987 | 52°F 1986 | 30% | 0% |
| Aug 4 | 88°F | 65°F | 101°F 2002 | 51°F 1993 | 30% | 0% |
| Aug 5 | 88°F | 65°F | 103°F 2002 | 51°F 1993 | 30% | 0% |
| Aug 6 | 88°F | 64°F | 101°F 2006 | 50°F 1990 | 30% | 0% |
| Aug 7 | 88°F | 64°F | 99°F 1991 | 45°F 1989 | 30% | 0% |
| Aug 8 | 88°F | 64°F | 103°F 1988 | 47°F 1989 | 30% | 0% |
| Aug 9 | 87°F | 64°F | 104°F 2000 | 51°F 1989 | 29% | 0% |
| Aug 10 | 87°F | 64°F | 101°F 2006 | 47°F 1985 | 29% | 0% |
| Aug 11 | 87°F | 64°F | 97°F 2000 | 51°F 1985 | 29% | 0% |
| Aug 12 | 87°F | 64°F | 99°F 2000 | 50°F 2004 | 29% | 0% |
| Aug 13 | 87°F | 63°F | 102°F 2000 | 48°F 1992 | 29% | 0% |
| Aug 14 | 87°F | 63°F | 102°F 2007 | 49°F 2004 | 28% | 0% |
| Aug 15 | 87°F | 63°F | 102°F 2007 | 51°F 1992 | 28% | 0% |
| Aug 16 | 87°F | 63°F | 102°F 1988 | 52°F 1992 | 28% | 0% |
| Aug 17 | 86°F | 63°F | 104°F 2000 | 55°F 2008 | 28% | 0% |
| Aug 18 | 86°F | 62°F | 105°F 2003 | 48°F 1987 | 28% | 0% |
| Aug 19 | 86°F | 62°F | 103°F 2003 | 51°F 1991 | 27% | 0% |
| Aug 20 | 86°F | 62°F | 98°F 2003 | 52°F 1985 | 27% | 0% |
| Aug 21 | 86°F | 62°F | 101°F 2003 | 50°F 2004 | 27% | 0% |
| Aug 22 | 86°F | 62°F | 99°F 1987 | 50°F 2009 | 27% | 0% |
| Aug 23 | 86°F | 61°F | 102°F 1991 | 50°F 2009 | 27% | 0% |
| Aug 24 | 85°F | 61°F | 101°F 2003 | 55°F 1985 | 26% | 0% |
| Aug 25 | 85°F | 61°F | 101°F 1998 | 52°F 1985 | 26% | 0% |
| Aug 26 | 85°F | 60°F | 101°F 2003 | 47°F 1988 | 26% | 0% |
| Aug 27 | 85°F | 60°F | 99°F 1990 | 51°F 1985 | 26% | 0% |
| Aug 28 | 85°F | 60°F | 102°F 1990 | 41°F 1988 | 26% | 0% |
| Aug 29 | 84°F | 60°F | 105°F 2000 | 45°F 1988 | 26% | 0% |
| Aug 30 | 84°F | 59°F | 96°F 1991 | 47°F 2009 | 26% | 0% |
| Aug 31 | 84°F | 59°F | 101°F 2000 | 43°F 2009 | 26% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (CDT).
- August 1
- sunrise 6:27 AM, sunset 8:43 PM
- August 31
- sunrise 6:55 AM, sunset 8:02 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00252820 (Fairbury 5S), public domain. Records: NOAA GHCN-Daily, station USC00250622, 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.