Black Rock Weather in December
Average highs run from 52°F on December 1 to 47°F on December 31, and lows from 19°F to 16°F. Normal precipitation for the month is 0.92 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
- 49°F
- Average low
- 16°F
- Precipitation
- 0.92 in
- Snowfall
- 3.4 in
- Record high
- 75°FDec 1, 2003
- Record low
- -25°FDec 6, 2011
- Chance of a freeze
- 100%
- Daylight
- 9 h 58 min to 9 h 50 min
- Cloud cover
- 51%
- Humidity
- 59%
- Dew point
- 18°F
- Wind
- 8.9 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 | 52°F | 19°F | 75°F 2003 | -6°F 2006 | 10% | 3% |
| Dec 2 | 52°F | 18°F | 67°F 1998 | -9°F 2004 | 10% | 3% |
| Dec 3 | 52°F | 18°F | 65°F 2010 | -8°F 1968 | 10% | 3% |
| Dec 4 | 51°F | 18°F | 65°F 1958 | -14°F 2009 | 10% | 3% |
| Dec 5 | 51°F | 18°F | 66°F 1965 | -15°F 2011 | 11% | 3% |
| Dec 6 | 51°F | 17°F | 69°F 1970 | -25°F 2011 | 11% | 4% |
| Dec 7 | 50°F | 17°F | 67°F 1970 | -15°F 2011 | 11% | 4% |
| Dec 8 | 50°F | 17°F | 65°F 1981 | -7°F 2011 | 11% | 4% |
| Dec 9 | 50°F | 17°F | 66°F 1981 | -9°F 2011 | 11% | 4% |
| Dec 10 | 49°F | 17°F | 67°F 1950 | -9°F 2011 | 11% | 4% |
| Dec 11 | 49°F | 17°F | 66°F 1950 | -6°F 1978 | 11% | 4% |
| Dec 12 | 49°F | 16°F | 64°F 1950 | -2°F 1953 | 11% | 4% |
| Dec 13 | 49°F | 16°F | 65°F 1969 | -5°F 1949 | 11% | 4% |
| Dec 14 | 48°F | 16°F | 67°F 1969 | -1°F 1949 | 12% | 4% |
| Dec 15 | 48°F | 16°F | 69°F 2006 | -3°F 2005 | 12% | 4% |
| Dec 16 | 48°F | 16°F | 65°F 2006 | -1°F 2001 | 12% | 5% |
| Dec 17 | 48°F | 16°F | 64°F 1980 | -7°F 1971 | 12% | 5% |
| Dec 18 | 48°F | 16°F | 63°F 1969 | -6°F 1967 | 12% | 5% |
| Dec 19 | 48°F | 16°F | 64°F 2003 | 3°F 1968 | 12% | 5% |
| Dec 20 | 47°F | 16°F | 65°F 2001 | -3°F 1951 | 12% | 5% |
| Dec 21 | 47°F | 16°F | 64°F 1958 | -9°F 1951 | 12% | 5% |
| Dec 22 | 47°F | 16°F | 63°F 2005 | -12°F 1949 | 12% | 5% |
| Dec 23 | 47°F | 16°F | 64°F 1955 | -20°F 1990 | 12% | 5% |
| Dec 24 | 47°F | 16°F | 64°F 1955 | -20°F 1990 | 12% | 5% |
| Dec 25 | 47°F | 16°F | 63°F 2024 | -14°F 1990 | 12% | 5% |
| Dec 26 | 47°F | 16°F | 65°F 1955 | -13°F 2009 | 13% | 5% |
| Dec 27 | 47°F | 16°F | 64°F 1980 | -14°F 2008 | 13% | 5% |
| Dec 28 | 47°F | 16°F | 66°F 1980 | -10°F 1966 | 13% | 5% |
| Dec 29 | 47°F | 16°F | 65°F 2024 | -12°F 1966 | 13% | 5% |
| Dec 30 | 47°F | 16°F | 63°F 1998 | -7°F 1966 | 13% | 5% |
| Dec 31 | 47°F | 16°F | 63°F 2017 | -16°F 2010 | 13% | 5% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (MST).
- December 1
- sunrise 7:05 AM, sunset 5:03 PM
- December 31
- sunrise 7:23 AM, sunset 5:13 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00093044 (Zuni), public domain. Records: NOAA GHCN-Daily, station USW00093044, 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.