Gem County Weather in December
Average highs run from 41°F on December 1 to 36°F on December 31, and lows from 19°F to 15°F. Normal precipitation for the month is 3.89 in over about 15 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
- 38°F
- Average low
- 17°F
- Precipitation
- 3.89 in
- Snowfall
- 3.6 in
- Record high
- 60°FDec 5, 2012
- Record low
- -14°FDec 9, 2013
- Chance of a freeze
- 100%
- Daylight
- 9 h 08 min to 8 h 57 min
- Cloud cover
- 68%
- Humidity
- 83%
- Dew point
- 21°F
- Wind
- 6.5 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 | 41°F | 19°F | 54°F 2012 | 14°F 2006 | 46% | 4% |
| Dec 2 | 41°F | 19°F | 58°F 2012 | 15°F 2006 | 47% | 4% |
| Dec 3 | 41°F | 19°F | 55°F 2003 | 12°F 2006 | 47% | 4% |
| Dec 4 | 40°F | 18°F | 58°F 2007 | 10°F 2005 | 47% | 5% |
| Dec 5 | 40°F | 18°F | 60°F 2012 | 5°F 2005 | 47% | 5% |
| Dec 6 | 40°F | 18°F | 56°F 2025 | 7°F 2013 | 47% | 5% |
| Dec 7 | 39°F | 18°F | 51°F 2023 | 6°F 2013 | 47% | 5% |
| Dec 8 | 39°F | 18°F | 54°F 2015 | -12°F 2013 | 47% | 5% |
| Dec 9 | 39°F | 17°F | 55°F 2015 | -14°F 2013 | 47% | 6% |
| Dec 10 | 38°F | 17°F | 53°F 2015 | -3°F 2009 | 48% | 6% |
| Dec 11 | 38°F | 17°F | 56°F 2014 | -2°F 2009 | 48% | 6% |
| Dec 12 | 38°F | 17°F | 56°F 2014 | -1°F 2013 | 48% | 6% |
| Dec 13 | 38°F | 17°F | 55°F 2002 | 7°F 2005 | 48% | 6% |
| Dec 14 | 38°F | 17°F | 57°F 2002 | 1°F 2005 | 48% | 7% |
| Dec 15 | 37°F | 17°F | 56°F 2002 | 1°F 2005 | 48% | 7% |
| Dec 16 | 37°F | 16°F | 55°F 2002 | 0°F 2005 | 48% | 7% |
| Dec 17 | 37°F | 16°F | 58°F 2025 | -4°F 2016 | 47% | 7% |
| Dec 18 | 37°F | 16°F | 50°F 1999 | -11°F 2016 | 47% | 7% |
| Dec 19 | 37°F | 16°F | 53°F 2025 | -5°F 2016 | 47% | 7% |
| Dec 20 | 37°F | 16°F | 46°F 2024 | 5°F 2008 | 47% | 8% |
| Dec 21 | 37°F | 16°F | 50°F 2014 | -1°F 1998 | 47% | 8% |
| Dec 22 | 36°F | 16°F | 51°F 2014 | -1°F 1998 | 47% | 8% |
| Dec 23 | 36°F | 16°F | 50°F 2021 | -1°F 1998 | 46% | 8% |
| Dec 24 | 36°F | 16°F | 54°F 2024 | 6°F 2011 | 46% | 8% |
| Dec 25 | 36°F | 15°F | 54°F 2025 | 4°F 2013 | 46% | 8% |
| Dec 26 | 36°F | 15°F | 54°F 2025 | -6°F 2016 | 46% | 8% |
| Dec 27 | 36°F | 15°F | 53°F 2002 | 5°F 2016 | 46% | 8% |
| Dec 28 | 36°F | 15°F | 51°F 2002 | 6°F 2013 | 46% | 8% |
| Dec 29 | 36°F | 15°F | 53°F 2011 | 1°F 2016 | 46% | 8% |
| Dec 30 | 36°F | 15°F | 56°F 2011 | -7°F 2016 | 46% | 8% |
| Dec 31 | 36°F | 15°F | 48°F 2002 | -9°F 2016 | 46% | 7% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (MST).
- December 1
- sunrise 8:01 AM, sunset 5:09 PM
- December 31
- sunrise 8:20 AM, sunset 5:17 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00106586 (Ola), public domain. Records: NOAA GHCN-Daily, station USW00024162, 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.