Richardton Weather in December
Average highs run from 32°F on December 1 to 25°F on December 31, and lows from 16°F to 8°F. Normal precipitation for the month is 0.46 in over about 4 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
- 28°F
- Average low
- 11°F
- Precipitation
- 0.46 in
- Snowfall
- 5.4 in
- Record high
- 66°FDec 5, 1979
- Record low
- -38°FDec 31, 1967
- Chance of a freeze
- 100%
- Daylight
- 8 h 48 min to 8 h 35 min
- Cloud cover
- 68%
- Humidity
- 82%
- Dew point
- 15°F
- Wind
- 12.5 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 | 32°F | 16°F | 57°F 1995 | -14°F 2014 | 11% | 10% |
| Dec 2 | 32°F | 16°F | 65°F 2021 | -13°F 1978 | 11% | 10% |
| Dec 3 | 32°F | 15°F | 58°F 1988 | -19°F 1978 | 11% | 10% |
| Dec 4 | 31°F | 15°F | 63°F 1965 | -18°F 1972 | 11% | 10% |
| Dec 5 | 31°F | 14°F | 66°F 1979 | -20°F 1972 | 11% | 10% |
| Dec 6 | 31°F | 14°F | 58°F 1988 | -29°F 1972 | 11% | 10% |
| Dec 7 | 30°F | 14°F | 62°F 2023 | -26°F 1972 | 11% | 11% |
| Dec 8 | 30°F | 13°F | 51°F 1965 | -29°F 1972 | 12% | 11% |
| Dec 9 | 29°F | 13°F | 57°F 2020 | -32°F 1977 | 12% | 11% |
| Dec 10 | 29°F | 13°F | 62°F 2015 | -28°F 1977 | 12% | 11% |
| Dec 11 | 29°F | 12°F | 56°F 1987 | -24°F 2019 | 12% | 11% |
| Dec 12 | 29°F | 12°F | 61°F 2004 | -20°F 2000 | 12% | 11% |
| Dec 13 | 28°F | 12°F | 58°F 2014 | -16°F 1963 | 12% | 11% |
| Dec 14 | 28°F | 12°F | 58°F 2014 | -34°F 1989 | 12% | 11% |
| Dec 15 | 28°F | 11°F | 61°F 1998 | -33°F 1963 | 13% | 12% |
| Dec 16 | 27°F | 11°F | 51°F 1997 | -32°F 1964 | 13% | 12% |
| Dec 17 | 27°F | 11°F | 53°F 1980 | -28°F 1964 | 13% | 12% |
| Dec 18 | 27°F | 10°F | 58°F 1998 | -29°F 2016 | 13% | 12% |
| Dec 19 | 27°F | 10°F | 59°F 1979 | -35°F 1989 | 13% | 12% |
| Dec 20 | 26°F | 10°F | 60°F 1979 | -35°F 1989 | 13% | 12% |
| Dec 21 | 26°F | 10°F | 52°F 2003 | -35°F 1989 | 13% | 12% |
| Dec 22 | 26°F | 9°F | 56°F 1979 | -36°F 1989 | 14% | 13% |
| Dec 23 | 26°F | 9°F | 51°F 1972 | -35°F 1989 | 14% | 13% |
| Dec 24 | 26°F | 9°F | 55°F 2020 | -35°F 2013 | 14% | 13% |
| Dec 25 | 25°F | 9°F | 52°F 1963 | -27°F 1996 | 14% | 13% |
| Dec 26 | 25°F | 9°F | 49°F 2005 | -33°F 1990 | 14% | 13% |
| Dec 27 | 25°F | 8°F | 52°F 2005 | -28°F 2017 | 14% | 13% |
| Dec 28 | 25°F | 8°F | 53°F 1980 | -22°F 2021 | 14% | 13% |
| Dec 29 | 25°F | 8°F | 54°F 1965 | -28°F 1990 | 14% | 13% |
| Dec 30 | 25°F | 8°F | 51°F 1980 | -35°F 1990 | 14% | 13% |
| Dec 31 | 25°F | 8°F | 61°F 1963 | -38°F 1967 | 14% | 13% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (MST).
- December 1
- sunrise 7:14 AM, sunset 4:02 PM
- December 31
- sunrise 7:35 AM, sunset 4:10 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00327530 (Richardton Abbey), public domain. Records: NOAA GHCN-Daily, station USC00324102, 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 2026-09-25. Sun and moon: computed with the NOAA solar equations and Meeus.