Dumas Weather in December
Average highs run from 59°F on December 1 to 53°F on December 31, and lows from 40°F to 36°F. Normal precipitation for the month is 5.43 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
- 56°F
- Average low
- 37°F
- Precipitation
- 5.43 in
- Record high
- 82°FDec 3, 1982
- Record low
- -1°FDec 30, 1876
- Chance of a freeze
- 99%
- Daylight
- 10 h 04 min to 9 h 56 min
- Cloud cover
- 59%
- Humidity
- 83%
- Dew point
- 38°F
- Wind
- 8.7 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 |
|---|---|---|---|---|---|---|
| Dec 1 | 59°F | 40°F | 77°F 1950 | 18°F 1964 | 23% | 0% |
| Dec 2 | 59°F | 39°F | 76°F 2021 | 16°F 1876 | 23% | 0% |
| Dec 3 | 58°F | 39°F | 82°F 1982 | 20°F 1979 | 23% | 0% |
| Dec 4 | 58°F | 39°F | 79°F 2013 | 20°F 1876 | 23% | 0% |
| Dec 5 | 58°F | 39°F | 78°F 1956 | 21°F 1897 | 23% | 0% |
| Dec 6 | 57°F | 39°F | 78°F 1951 | 17°F 1937 | 23% | 0% |
| Dec 7 | 57°F | 38°F | 81°F 1939 | 12°F 1950 | 23% | 0% |
| Dec 8 | 57°F | 38°F | 79°F 1978 | 17°F 2006 | 24% | 0% |
| Dec 9 | 57°F | 38°F | 82°F 2023 | 15°F 1937 | 24% | 0% |
| Dec 10 | 57°F | 38°F | 81°F 2021 | 11°F 1995 | 24% | 0% |
| Dec 11 | 56°F | 38°F | 80°F 2015 | 16°F 1995 | 24% | 0% |
| Dec 12 | 56°F | 38°F | 77°F 2015 | 9°F 1962 | 24% | 0% |
| Dec 13 | 56°F | 38°F | 78°F 1948 | 14°F 1989 | 24% | 0% |
| Dec 14 | 56°F | 38°F | 75°F 1984 | 2°F 1958 | 24% | 0% |
| Dec 15 | 55°F | 37°F | 77°F 1984 | 5°F 1958 | 24% | 0% |
| Dec 16 | 55°F | 37°F | 77°F 2021 | 10°F 1955 | 24% | 0% |
| Dec 17 | 55°F | 37°F | 78°F 2016 | 12°F 1943 | 24% | 0% |
| Dec 18 | 55°F | 37°F | 76°F 1984 | 11°F 1979 | 24% | 0% |
| Dec 19 | 55°F | 37°F | 75°F 1984 | 9°F 1981 | 24% | 0% |
| Dec 20 | 55°F | 37°F | 76°F 1978 | 13°F 1996 | 24% | 0% |
| Dec 21 | 54°F | 37°F | 78°F 2010 | 13°F 1996 | 24% | 0% |
| Dec 22 | 54°F | 37°F | 74°F 2017 | 3°F 1989 | 24% | 0% |
| Dec 23 | 54°F | 37°F | 78°F 1955 | 1°F 1989 | 24% | 0% |
| Dec 24 | 54°F | 37°F | 81°F 1955 | 2°F 1989 | 24% | 0% |
| Dec 25 | 54°F | 36°F | 78°F 1942 | 0°F 1983 | 23% | 0% |
| Dec 26 | 54°F | 36°F | 80°F 2015 | 1°F 1983 | 23% | 0% |
| Dec 27 | 54°F | 36°F | 78°F 2005 | 12°F 1983 | 23% | 0% |
| Dec 28 | 54°F | 36°F | 79°F 2025 | 19°F 1938 | 23% | 0% |
| Dec 29 | 53°F | 36°F | 79°F 2021 | 13°F 1876 | 23% | 0% |
| Dec 30 | 53°F | 36°F | 75°F 1996 | -1°F 1876 | 23% | 0% |
| Dec 31 | 53°F | 36°F | 77°F 1984 | 3°F 1983 | 23% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (CST).
- December 1
- sunrise 6:53 AM, sunset 4:57 PM
- December 31
- sunrise 7:11 AM, sunset 5:07 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00032148 (Dumas), public domain. Records: NOAA GHCN-Daily, station USW00053919, 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.