Guernsey Weather in December
Average highs run from 43°F on December 1 to 40°F on December 31, and lows from 18°F to 14°F. Normal precipitation for the month is 0.34 in.
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
- 40°F
- Average low
- 15°F
- Precipitation
- 0.34 in
- Snowfall
- 6.2 in
- Record high
- 70°FDec 12, 2014
- Record low
- -23°FDec 17, 2016
- Chance of a freeze
- 100%
- Daylight
- 9 h 20 min to 9 h 08 min
- Cloud cover
- 64%
- Humidity
- 66%
- Dew point
- 17°F
- Wind
- 13.2 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 | 60°F 2012 | 13°F 2016 | 8% | |
| Dec 2 | 43°F | 18°F | 64°F 2012 | 18°F 2015 | 8% | |
| Dec 3 | 43°F | 17°F | 58°F 2012 | 7°F 2013 | 8% | |
| Dec 4 | 42°F | 17°F | 59°F 2014 | -3°F 2013 | 8% | |
| Dec 5 | 42°F | 17°F | 62°F 2012 | -10°F 2013 | 8% | |
| Dec 6 | 42°F | 17°F | 54°F 2015 | -9°F 2013 | 8% | |
| Dec 7 | 41°F | 16°F | 56°F 2015 | -9°F 2013 | 8% | |
| Dec 8 | 41°F | 16°F | 58°F 2015 | -12°F 2016 | 9% | |
| Dec 9 | 41°F | 16°F | 62°F 2015 | -11°F 2013 | 9% | |
| Dec 10 | 41°F | 16°F | 61°F 2014 | 4°F 2012 | 9% | |
| Dec 11 | 41°F | 16°F | 66°F 2014 | -1°F 2013 | 9% | |
| Dec 12 | 40°F | 15°F | 70°F 2014 | 7°F 2013 | 9% | |
| Dec 13 | 40°F | 15°F | 48°F 2014 | -1°F 2016 | 9% | |
| Dec 14 | 40°F | 15°F | 46°F 2012 | 8°F 2016 | 9% | |
| Dec 15 | 40°F | 15°F | 54°F 2016 | 14°F 2016 | 9% | |
| Dec 16 | 40°F | 15°F | 53°F 2013 | -2°F 2016 | 9% | |
| Dec 17 | 40°F | 14°F | 55°F 2013 | -23°F 2016 | 9% | |
| Dec 18 | 40°F | 14°F | 58°F 2013 | -23°F 2016 | 9% | |
| Dec 19 | 40°F | 14°F | 59°F 2015 | -7°F 2016 | 9% | |
| Dec 20 | 40°F | 14°F | 50°F 2016 | 4°F 2012 | 10% | |
| Dec 21 | 39°F | 14°F | 54°F 2012 | 11°F 2013 | 10% | |
| Dec 22 | 39°F | 14°F | 55°F 2012 | 11°F 2016 | 10% | |
| Dec 23 | 39°F | 14°F | 50°F 2016 | 5°F 2013 | 10% | |
| Dec 24 | 40°F | 14°F | 48°F 2016 | 12°F 2012 | 10% | |
| Dec 25 | 40°F | 14°F | 43°F 2014 | -6°F 2012 | 10% | |
| Dec 26 | 40°F | 14°F | 47°F 2013 | -8°F 2012 | 10% | |
| Dec 27 | 40°F | 14°F | 56°F 2013 | -4°F 2015 | 9% | |
| Dec 28 | 40°F | 14°F | 45°F 2013 | -3°F 2015 | 9% | |
| Dec 29 | 40°F | 14°F | 43°F 2016 | 0°F 2012 | 9% | |
| Dec 30 | 40°F | 14°F | 50°F 2016 | -20°F 2014 | 9% | |
| Dec 31 | 40°F | 14°F | 33°F 2013 | -19°F 2014 | 9% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (MST).
- December 1
- sunrise 7:08 AM, sunset 4:28 PM
- December 31
- sunrise 7:28 AM, sunset 4:36 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00484131 (Guernsey 2NW), public domain. Records: NOAA GHCN-Daily, station USC00484131, 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.