Jefferson County Weather in August
Average highs run from 91°F on August 1 to 89°F on August 31, and lows from 72°F to 71°F. Normal precipitation for the month is 6.41 in.
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
- 90°F
- Average low
- 72°F
- Precipitation
- 6.41 in
- Record high
- 106°FAug 25, 2010
- Record low
- 59°FAug 25, 2009
- Chance of a freeze
- 0%
- Days of 90°F or more
- 19.5
- Daylight
- 13 h 36 min to 12 h 47 min
- Cloud cover
- 57%
- Humidity
- 80%
- Dew point
- 73°F
- Wind
- 4.0 mph
Every day of the month
A wet day has at least 0.01 inch of precipitation.
| Date | Normal high | Normal low | Record high | Record low | Chance wet |
|---|---|---|---|---|---|
| Aug 1 | 91°F | 72°F | 102°F 2011 | 63°F 2017 | |
| Aug 2 | 91°F | 72°F | 100°F 2004 | 65°F 2017 | |
| Aug 3 | 91°F | 72°F | 101°F 2014 | 70°F 2008 | |
| Aug 4 | 91°F | 72°F | 104°F 2011 | 65°F 2015 | |
| Aug 5 | 91°F | 72°F | 103°F 2011 | 69°F 2006 | |
| Aug 6 | 91°F | 72°F | 100°F 2004 | 69°F 2006 | |
| Aug 7 | 91°F | 72°F | 102°F 2011 | 69°F 2004 | |
| Aug 8 | 91°F | 72°F | 101°F 2016 | 71°F 2009 | |
| Aug 9 | 91°F | 72°F | 102°F 2014 | 66°F 2008 | |
| Aug 10 | 91°F | 72°F | 100°F 2007 | 62°F 2008 | |
| Aug 11 | 91°F | 72°F | 102°F 2015 | 62°F 2008 | |
| Aug 12 | 91°F | 72°F | 99°F 2006 | 69°F 2008 | |
| Aug 13 | 91°F | 72°F | 101°F 2011 | 70°F 2012 | |
| Aug 14 | 90°F | 72°F | 101°F 2007 | 70°F 2004 | |
| Aug 15 | 90°F | 72°F | 100°F 2006 | 70°F 2004 | |
| Aug 16 | 90°F | 72°F | 100°F 2007 | 64°F 2011 | |
| Aug 17 | 90°F | 72°F | 99°F 2016 | 63°F 2011 | |
| Aug 18 | 90°F | 72°F | 103°F 2010 | 64°F 2011 | |
| Aug 19 | 90°F | 71°F | 101°F 2011 | 63°F 2011 | |
| Aug 20 | 90°F | 71°F | 99°F 2005 | 71°F 2004 | |
| Aug 21 | 90°F | 71°F | 100°F 2005 | 68°F 2024 | |
| Aug 22 | 90°F | 71°F | 102°F 2005 | 68°F 2024 | |
| Aug 23 | 90°F | 71°F | 101°F 2007 | 62°F 2009 | |
| Aug 24 | 90°F | 71°F | 104°F 2016 | 61°F 2009 | |
| Aug 25 | 90°F | 71°F | 106°F 2010 | 59°F 2009 | |
| Aug 26 | 90°F | 71°F | 100°F 2011 | 60°F 2009 | |
| Aug 27 | 89°F | 71°F | 103°F 2011 | 63°F 2015 | |
| Aug 28 | 89°F | 71°F | 105°F 2011 | 65°F 2015 | |
| Aug 29 | 89°F | 71°F | 103°F 2011 | 65°F 2025 | |
| Aug 30 | 89°F | 71°F | 105°F 2016 | 67°F 2011 | |
| Aug 31 | 89°F | 71°F | 105°F 2016 | 70°F 2019 |
Chance of rain
Sunrise and sunset
Times for 2026, local time (EDT).
- August 1
- sunrise 6:54 AM, sunset 8:30 PM
- August 31
- sunrise 7:12 AM, sunset 7:59 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00085880 (Monticello 10 Sw), public domain. Records: NOAA GHCN-Daily, station USC00088756, 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.