Greeley County Weather in December
Average highs run from 42°F on December 1 to 34°F on December 31, and lows from 17°F to 12°F. Normal precipitation for the month is 0.70 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
- 37°F
- Average low
- 14°F
- Precipitation
- 0.70 in
- Snowfall
- 5.0 in
- Record high
- 72°FDec 22, 2025
- Record low
- -26°FDec 18, 2016
- Chance of a freeze
- 100%
- Daylight
- 9 h 24 min to 9 h 13 min
- Cloud cover
- 60%
- Humidity
- 76%
- Dew point
- 20°F
- Wind
- 11.6 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 | 42°F | 17°F | 69°F 2012 | 4°F 2005 | 13% | 7% |
| Dec 2 | 41°F | 17°F | 69°F 2012 | 4°F 2011 | 13% | 7% |
| Dec 3 | 41°F | 17°F | 59°F 2012 | 1°F 2006 | 13% | 8% |
| Dec 4 | 41°F | 17°F | 63°F 2007 | -7°F 2011 | 13% | 8% |
| Dec 5 | 40°F | 16°F | 60°F 2006 | -11°F 2011 | 13% | 8% |
| Dec 6 | 40°F | 16°F | 66°F 2023 | -15°F 2011 | 13% | 8% |
| Dec 7 | 39°F | 16°F | 65°F 2024 | -11°F 2013 | 13% | 8% |
| Dec 8 | 39°F | 16°F | 69°F 2024 | -7°F 2005 | 13% | 8% |
| Dec 9 | 39°F | 15°F | 67°F 2020 | -12°F 2009 | 13% | 8% |
| Dec 10 | 38°F | 15°F | 67°F 2015 | -19°F 2009 | 13% | 8% |
| Dec 11 | 38°F | 15°F | 58°F 2004 | -10°F 2009 | 13% | 9% |
| Dec 12 | 38°F | 15°F | 54°F 2006 | -11°F 2000 | 13% | 9% |
| Dec 13 | 37°F | 14°F | 59°F 2006 | -1°F 2025 | 13% | 9% |
| Dec 14 | 37°F | 14°F | 60°F 2002 | -8°F 2008 | 13% | 9% |
| Dec 15 | 37°F | 14°F | 69°F 2002 | -11°F 2008 | 13% | 9% |
| Dec 16 | 37°F | 14°F | 63°F 2025 | -7°F 2008 | 13% | 9% |
| Dec 17 | 36°F | 14°F | 56°F 2023 | -20°F 2016 | 13% | 9% |
| Dec 18 | 36°F | 13°F | 68°F 2013 | -26°F 2016 | 13% | 9% |
| Dec 19 | 36°F | 13°F | 55°F 2023 | -8°F 2016 | 13% | 9% |
| Dec 20 | 36°F | 13°F | 59°F 2003 | -6°F 2008 | 13% | 10% |
| Dec 21 | 36°F | 13°F | 58°F 2003 | -15°F 2008 | 13% | 10% |
| Dec 22 | 35°F | 13°F | 72°F 2025 | -17°F 2008 | 13% | 10% |
| Dec 23 | 35°F | 13°F | 60°F 2021 | -6°F 2004 | 13% | 10% |
| Dec 24 | 35°F | 12°F | 67°F 2025 | -5°F 2004 | 13% | 10% |
| Dec 25 | 35°F | 12°F | 61°F 2021 | -5°F 2017 | 13% | 10% |
| Dec 26 | 35°F | 12°F | 72°F 2025 | -15°F 2017 | 13% | 10% |
| Dec 27 | 35°F | 12°F | 64°F 2025 | -15°F 2017 | 13% | 10% |
| Dec 28 | 34°F | 12°F | 63°F 2002 | -4°F 2012 | 13% | 10% |
| Dec 29 | 34°F | 12°F | 57°F 2004 | -8°F 2012 | 13% | 10% |
| Dec 30 | 34°F | 12°F | 63°F 2004 | -13°F 2014 | 13% | 10% |
| Dec 31 | 34°F | 12°F | 60°F 2025 | -14°F 2014 | 13% | 10% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (CST).
- December 1
- sunrise 7:41 AM, sunset 5:05 PM
- December 31
- sunrise 8:01 AM, sunset 5:14 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00253425 (Greeley), public domain. Records: NOAA GHCN-Daily, station USW00094958, 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.