Grayson County Weather in August
Average highs run from 79°F on August 1 to 75°F on August 31, and lows from 63°F to 59°F.
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
- 77°F
- Average low
- 61°F
- Record high
- 96°FAug 7, 1918
- Record low
- 30°FAug 15, 1924
- Chance of a freeze
- 0%
- Daylight
- 14 h 00 min to 12 h 59 min
- Cloud cover
- 59%
- Humidity
- 74%
- Dew point
- 61°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 |
|---|---|---|---|---|---|---|
| Aug 1 | 79°F | 63°F | 88°F 1999 | 39°F 1914 | 0% | |
| Aug 2 | 79°F | 63°F | 87°F 1942 | 38°F 1925 | 0% | |
| Aug 3 | 79°F | 63°F | 90°F 1928 | 38°F 1976 | 0% | |
| Aug 4 | 79°F | 63°F | 92°F 1930 | 39°F 1907 | 0% | |
| Aug 5 | 79°F | 63°F | 92°F 1930 | 37°F 1912 | 0% | |
| Aug 6 | 78°F | 62°F | 92°F 1930 | 38°F 1957 | 0% | |
| Aug 7 | 78°F | 62°F | 96°F 1918 | 37°F 1957 | 0% | |
| Aug 8 | 78°F | 62°F | 90°F 1930 | 41°F 2002 | 0% | |
| Aug 9 | 78°F | 62°F | 90°F 1930 | 35°F 1989 | 0% | |
| Aug 10 | 78°F | 62°F | 89°F 1930 | 35°F 1989 | 0% | |
| Aug 11 | 78°F | 62°F | 88°F 1900 | 40°F 1962 | 0% | |
| Aug 12 | 78°F | 62°F | 89°F 1900 | 36°F 1930 | 0% | |
| Aug 13 | 78°F | 61°F | 88°F 1900 | 36°F 1930 | 0% | |
| Aug 14 | 78°F | 61°F | 88°F 1943 | 39°F 1967 | 0% | |
| Aug 15 | 77°F | 61°F | 86°F 1988 | 30°F 1924 | 0% | |
| Aug 16 | 77°F | 61°F | 90°F 1988 | 33°F 1979 | 0% | |
| Aug 17 | 77°F | 61°F | 92°F 2007 | 35°F 1979 | 0% | |
| Aug 18 | 77°F | 61°F | 96°F 1918 | 40°F 1917 | 0% | |
| Aug 19 | 77°F | 61°F | 91°F 1988 | 38°F 1943 | 0% | |
| Aug 20 | 77°F | 60°F | 92°F 1983 | 35°F 1943 | 0% | |
| Aug 21 | 77°F | 60°F | 94°F 1983 | 38°F 1918 | 0% | |
| Aug 22 | 76°F | 60°F | 91°F 1983 | 37°F 1956 | 0% | |
| Aug 23 | 76°F | 60°F | 90°F 1983 | 34°F 1909 | 0% | |
| Aug 24 | 76°F | 60°F | 89°F 2007 | 38°F 1902 | 0% | |
| Aug 25 | 76°F | 60°F | 92°F 1943 | 34°F 1944 | 0% | |
| Aug 26 | 76°F | 59°F | 88°F 2007 | 35°F 1917 | 0% | |
| Aug 27 | 76°F | 59°F | 89°F 1943 | 33°F 1945 | 0% | |
| Aug 28 | 76°F | 59°F | 89°F 1948 | 34°F 1968 | 0% | |
| Aug 29 | 75°F | 59°F | 87°F 1945 | 31°F 1986 | 0% | |
| Aug 30 | 75°F | 59°F | 89°F 1948 | 34°F 1965 | 0% | |
| Aug 31 | 75°F | 59°F | 89°F 1932 | 34°F 1946 | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (EDT).
- August 1
- sunrise 6:31 AM, sunset 8:31 PM
- August 31
- sunrise 6:55 AM, sunset 7:54 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00442730 (Elk Creek 4SSW), public domain. Records: NOAA GHCN-Daily, station USC00441209, 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.