Helotes Weather in December
Average highs run from 69°F on December 1 to 64°F on December 31, and lows from 47°F to 43°F. Normal precipitation for the month is 1.89 in over about 7 wet days.
December day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
December at a glance
- Average high
- 66°F
- Average low
- 44°F
- Precipitation
- 1.89 in
- Record high
- 92°FDec 17, 1908
- Record low
- 0°FDec 22, 1929
- Chance of a freeze
- 65%
- Daylight
- 10 h 23 min to 10 h 17 min
- Cloud cover
- 58%
- Humidity
- 71%
- Dew point
- 41°F
- Wind
- 9.2 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 |
|---|---|---|---|---|---|
| Dec 1 | 69°F | 47°F | 86°F 2019 | 16°F 1976 | 20% |
| Dec 2 | 69°F | 47°F | 83°F 1904 | 22°F 1975 | 20% |
| Dec 3 | 68°F | 46°F | 83°F 1933 | 17°F 1929 | 20% |
| Dec 4 | 68°F | 46°F | 86°F 2013 | 20°F 1905 | 20% |
| Dec 5 | 68°F | 46°F | 85°F 1933 | 18°F 2009 | 21% |
| Dec 6 | 68°F | 46°F | 85°F 1995 | 14°F 1950 | 21% |
| Dec 7 | 67°F | 46°F | 81°F 1924 | 11°F 1950 | 21% |
| Dec 8 | 67°F | 45°F | 83°F 1933 | 21°F 1984 | 21% |
| Dec 9 | 67°F | 45°F | 81°F 1987 | 14°F 1917 | 22% |
| Dec 10 | 67°F | 45°F | 85°F 1939 | 14°F 1978 | 22% |
| Dec 11 | 66°F | 45°F | 83°F 1939 | 20°F 1914 | 22% |
| Dec 12 | 66°F | 45°F | 85°F 1948 | 15°F 1917 | 23% |
| Dec 13 | 66°F | 45°F | 87°F 1973 | 15°F 1966 | 23% |
| Dec 14 | 66°F | 45°F | 86°F 1908 | 13°F 1914 | 23% |
| Dec 15 | 66°F | 44°F | 84°F 2019 | 19°F 1952 | 23% |
| Dec 16 | 65°F | 44°F | 82°F 2019 | 13°F 1951 | 24% |
| Dec 17 | 65°F | 44°F | 92°F 1908 | 14°F 1989 | 24% |
| Dec 18 | 65°F | 44°F | 78°F 1955 | 19°F 1972 | 24% |
| Dec 19 | 65°F | 44°F | 81°F 2012 | 12°F 1996 | 24% |
| Dec 20 | 65°F | 44°F | 81°F 1933 | 17°F 1924 | 25% |
| Dec 21 | 65°F | 44°F | 85°F 1933 | 15°F 1973 | 25% |
| Dec 22 | 65°F | 44°F | 82°F 1933 | 0°F 1929 | 25% |
| Dec 23 | 64°F | 43°F | 80°F 1955 | 2°F 1989 | 25% |
| Dec 24 | 64°F | 43°F | 87°F 1955 | 3°F 1989 | 25% |
| Dec 25 | 64°F | 43°F | 87°F 1955 | 8°F 1983 | 25% |
| Dec 26 | 64°F | 43°F | 82°F 2021 | 10°F 1983 | 26% |
| Dec 27 | 64°F | 43°F | 82°F 2016 | 16°F 1983 | 26% |
| Dec 28 | 64°F | 43°F | 89°F 1915 | 15°F 1925 | 26% |
| Dec 29 | 64°F | 43°F | 84°F 1951 | 15°F 1983 | 26% |
| Dec 30 | 64°F | 43°F | 84°F 1951 | 8°F 1983 | 26% |
| Dec 31 | 64°F | 43°F | 89°F 2024 | 16°F 1983 | 26% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (CST).
- December 1
- sunrise 7:12 AM, sunset 5:35 PM
- December 31
- sunrise 7:29 AM, sunset 5:46 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00418169 (San Antonio/seaworld), public domain. Records: NOAA GHCN-Daily, station USC00410902, 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.