Monument Weather in December
Average highs run from 43°F on December 1 to 40°F on December 31, and lows from 18°F to 16°F. Normal precipitation for the month is 1.06 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
- 41°F
- Average low
- 17°F
- Precipitation
- 1.06 in
- Snowfall
- 13.4 in
- Record high
- 71°FDec 2, 2021
- Record low
- -13°FDec 31, 2014
- Chance of a freeze
- 100%
- Daylight
- 9 h 37 min to 9 h 28 min
- Cloud cover
- 55%
- Humidity
- 59%
- Dew point
- 12°F
- Wind
- 9.4 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 | 43°F | 18°F | 66°F 2011 | 9°F 2010 | 25% | 25% |
| Dec 2 | 43°F | 18°F | 71°F 2021 | 12°F 2014 | 25% | 25% |
| Dec 3 | 42°F | 18°F | 71°F 2021 | 5°F 2022 | 25% | 25% |
| Dec 4 | 42°F | 18°F | 66°F 2010 | 4°F 2013 | 25% | 25% |
| Dec 5 | 42°F | 17°F | 64°F 2015 | -9°F 2013 | 25% | 25% |
| Dec 6 | 42°F | 17°F | 68°F 2012 | -11°F 2013 | 25% | 25% |
| Dec 7 | 42°F | 17°F | 58°F 2020 | -11°F 2013 | 24% | 25% |
| Dec 8 | 41°F | 17°F | 64°F 2020 | -5°F 2013 | 24% | 25% |
| Dec 9 | 41°F | 17°F | 63°F 2020 | -5°F 2013 | 24% | 25% |
| Dec 10 | 41°F | 17°F | 63°F 2014 | -5°F 2013 | 24% | 25% |
| Dec 11 | 41°F | 17°F | 65°F 2016 | 8°F 2012 | 25% | 25% |
| Dec 12 | 41°F | 17°F | 67°F 2014 | 9°F 2013 | 25% | 25% |
| Dec 13 | 41°F | 17°F | 68°F 2021 | 11°F 2020 | 25% | 25% |
| Dec 14 | 40°F | 17°F | 65°F 2010 | 10°F 2022 | 25% | 25% |
| Dec 15 | 40°F | 17°F | 66°F 2021 | 8°F 2016 | 25% | 25% |
| Dec 16 | 40°F | 16°F | 66°F 2021 | 6°F 2022 | 25% | 26% |
| Dec 17 | 40°F | 16°F | 67°F 2021 | -5°F 2016 | 25% | 26% |
| Dec 18 | 40°F | 16°F | 59°F 2018 | -9°F 2016 | 24% | 26% |
| Dec 19 | 40°F | 16°F | 64°F 2011 | 7°F 2016 | 24% | 25% |
| Dec 20 | 40°F | 16°F | 61°F 2021 | 4°F 2012 | 24% | 25% |
| Dec 21 | 40°F | 16°F | 66°F 2010 | 10°F 2013 | 24% | 25% |
| Dec 22 | 40°F | 16°F | 62°F 2018 | 6°F 2017 | 24% | 25% |
| Dec 23 | 40°F | 16°F | 68°F 2019 | -5°F 2022 | 24% | 25% |
| Dec 24 | 40°F | 16°F | 65°F 2021 | 0°F 2017 | 23% | 25% |
| Dec 25 | 40°F | 16°F | 62°F 2021 | 3°F 2017 | 23% | 24% |
| Dec 26 | 40°F | 16°F | 59°F 2020 | 2°F 2012 | 23% | 24% |
| Dec 27 | 40°F | 16°F | 60°F 2020 | 1°F 2012 | 23% | 24% |
| Dec 28 | 40°F | 16°F | 61°F 2013 | 5°F 2014 | 23% | 24% |
| Dec 29 | 40°F | 16°F | 63°F 2022 | 3°F 2018 | 22% | 23% |
| Dec 30 | 40°F | 16°F | 64°F 2017 | -7°F 2014 | 22% | 23% |
| Dec 31 | 40°F | 16°F | 65°F 2017 | -13°F 2014 | 22% | 23% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (MST).
- December 1
- sunrise 7:00 AM, sunset 4:37 PM
- December 31
- sunrise 7:19 AM, sunset 4:47 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00055734 (Monument), public domain. Records: NOAA GHCN-Daily, station USC00050756, 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.