Castle Dale Weather in December
Average highs run from 45°F on December 1 to 39°F on December 31, and lows from 15°F to 9°F. Normal precipitation for the month is 0.47 in over about 5 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
- 11°F
- Precipitation
- 0.47 in
- Snowfall
- 4.9 in
- Record high
- 57°FDec 1, 2021
- Record low
- -7°FDec 9, 2009
- Chance of a freeze
- 100%
- Daylight
- 9 h 37 min to 9 h 28 min
- Cloud cover
- 54%
- Humidity
- 73%
- Dew point
- 15°F
- Wind
- 8.1 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 | 45°F | 15°F | 57°F 2021 | 3°F 2001 | 12% | 4% |
| Dec 2 | 45°F | 14°F | 57°F 2021 | 4°F 2004 | 12% | 4% |
| Dec 3 | 44°F | 14°F | 55°F 2017 | 3°F 2004 | 13% | 5% |
| Dec 4 | 44°F | 14°F | 54°F 2023 | 2°F 2009 | 13% | 5% |
| Dec 5 | 44°F | 13°F | 56°F 2021 | 4°F 2005 | 13% | 5% |
| Dec 6 | 43°F | 13°F | 53°F 2012 | 6°F 1998 | 13% | 5% |
| Dec 7 | 43°F | 13°F | 50°F 2020 | 2°F 2005 | 13% | 5% |
| Dec 8 | 43°F | 13°F | 50°F 2002 | 0°F 2005 | 13% | 5% |
| Dec 9 | 42°F | 12°F | 47°F 2014 | -7°F 2009 | 13% | 6% |
| Dec 10 | 42°F | 12°F | 52°F 2025 | -6°F 2009 | 13% | 6% |
| Dec 11 | 42°F | 12°F | 54°F 2025 | -3°F 2009 | 14% | 6% |
| Dec 12 | 41°F | 12°F | 54°F 2010 | 6°F 2009 | 14% | 6% |
| Dec 13 | 41°F | 11°F | 52°F 2023 | 4°F 2001 | 14% | 6% |
| Dec 14 | 41°F | 11°F | 49°F 2025 | 3°F 1999 | 14% | 7% |
| Dec 15 | 41°F | 11°F | 51°F 1998 | 1°F 2007 | 14% | 7% |
| Dec 16 | 40°F | 11°F | 52°F 1998 | -2°F 2001 | 15% | 7% |
| Dec 17 | 40°F | 11°F | 49°F 1998 | 3°F 2001 | 15% | 7% |
| Dec 18 | 40°F | 11°F | 46°F 1998 | 5°F 2022 | 15% | 8% |
| Dec 19 | 40°F | 10°F | 48°F 2025 | -1°F 2012 | 15% | 8% |
| Dec 20 | 40°F | 10°F | 57°F 2025 | -2°F 2012 | 15% | 8% |
| Dec 21 | 40°F | 10°F | 52°F 2025 | -3°F 2012 | 15% | 8% |
| Dec 22 | 39°F | 10°F | 54°F 2025 | -2°F 1998 | 16% | 8% |
| Dec 23 | 39°F | 10°F | 54°F 2005 | 0°F 2008 | 16% | 8% |
| Dec 24 | 39°F | 10°F | 51°F 2005 | -2°F 2008 | 16% | 8% |
| Dec 25 | 39°F | 10°F | 55°F 2025 | 2°F 2007 | 16% | 9% |
| Dec 26 | 39°F | 10°F | 49°F 2017 | -1°F 2009 | 16% | 9% |
| Dec 27 | 39°F | 10°F | 54°F 1999 | -2°F 2008 | 16% | 9% |
| Dec 28 | 39°F | 9°F | 49°F 2017 | -3°F 2007 | 16% | 9% |
| Dec 29 | 39°F | 9°F | 50°F 1998 | 1°F 2012 | 16% | 9% |
| Dec 30 | 39°F | 9°F | 46°F 1998 | 2°F 2008 | 16% | 9% |
| Dec 31 | 39°F | 9°F | 51°F 2017 | -6°F 2010 | 16% | 9% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (MST).
- December 1
- sunrise 7:25 AM, sunset 5:02 PM
- December 31
- sunrise 7:43 AM, sunset 5:11 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00421214 (Castle Dale), public domain. Records: NOAA GHCN-Daily, station USW00093141, 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.