Crystal City Weather in August
Average highs run from 99°F on August 1 to 97°F on August 31, and lows from 76°F to 75°F. Normal precipitation for the month is 1.92 in over about 4 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
- 99°F
- Average low
- 76°F
- Precipitation
- 1.92 in
- Record high
- 109°FAug 8, 2023
- Record low
- 61°FAug 26, 1979
- Chance of a freeze
- 0%
- Days of 90°F or more
- 29.6
- Daylight
- 13 h 29 min to 12 h 45 min
- Cloud cover
- 39%
- Humidity
- 54%
- Dew point
- 67°F
- Wind
- 10.1 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 | 99°F | 76°F | 107°F 1917 | 63°F 1936 | 12% |
| Aug 2 | 99°F | 76°F | 106°F 1917 | 67°F 1936 | 12% |
| Aug 3 | 99°F | 76°F | 107°F 1944 | 67°F 1978 | 12% |
| Aug 4 | 99°F | 76°F | 107°F 1953 | 67°F 1961 | 12% |
| Aug 5 | 99°F | 76°F | 107°F 1962 | 66°F 1979 | 12% |
| Aug 6 | 100°F | 76°F | 107°F 2011 | 67°F 1931 | 12% |
| Aug 7 | 100°F | 76°F | 108°F 2023 | 69°F 1931 | 12% |
| Aug 8 | 100°F | 76°F | 109°F 2023 | 67°F 1949 | 12% |
| Aug 9 | 100°F | 76°F | 108°F 1953 | 67°F 1990 | 12% |
| Aug 10 | 100°F | 76°F | 109°F 1953 | 69°F 1956 | 13% |
| Aug 11 | 100°F | 76°F | 109°F 1953 | 69°F 1931 | 13% |
| Aug 12 | 100°F | 76°F | 107°F 2023 | 68°F 1931 | 13% |
| Aug 13 | 100°F | 76°F | 107°F 2019 | 62°F 2004 | 13% |
| Aug 14 | 100°F | 76°F | 108°F 1962 | 62°F 2004 | 13% |
| Aug 15 | 100°F | 76°F | 107°F 1999 | 65°F 1967 | 14% |
| Aug 16 | 100°F | 76°F | 108°F 1943 | 65°F 1931 | 14% |
| Aug 17 | 100°F | 76°F | 108°F 1943 | 63°F 1931 | 14% |
| Aug 18 | 100°F | 76°F | 108°F 1969 | 65°F 1931 | 14% |
| Aug 19 | 100°F | 76°F | 107°F 1945 | 67°F 1931 | 15% |
| Aug 20 | 99°F | 76°F | 109°F 1986 | 63°F 1940 | 15% |
| Aug 21 | 99°F | 76°F | 107°F 1984 | 63°F 1976 | 15% |
| Aug 22 | 99°F | 76°F | 109°F 2024 | 62°F 1946 | 16% |
| Aug 23 | 99°F | 76°F | 108°F 1917 | 64°F 1940 | 16% |
| Aug 24 | 99°F | 76°F | 109°F 1977 | 64°F 1940 | 16% |
| Aug 25 | 99°F | 76°F | 107°F 2010 | 67°F 1931 | 17% |
| Aug 26 | 98°F | 75°F | 105°F 1977 | 61°F 1979 | 17% |
| Aug 27 | 98°F | 75°F | 106°F 1948 | 63°F 1961 | 17% |
| Aug 28 | 98°F | 75°F | 108°F 1940 | 65°F 2015 | 17% |
| Aug 29 | 98°F | 75°F | 109°F 2011 | 64°F 2015 | 18% |
| Aug 30 | 97°F | 75°F | 108°F 2011 | 62°F 2017 | 18% |
| Aug 31 | 97°F | 75°F | 105°F 1930 | 62°F 2017 | 18% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (CDT).
- August 1
- sunrise 7:01 AM, sunset 8:30 PM
- August 31
- sunrise 7:17 AM, sunset 8:02 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00412160 (Crystal City), public domain. Records: NOAA GHCN-Daily, station USC00411486, 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.