Thomaston Weather in December
Average highs run from 45°F on December 1 to 37°F on December 31, and lows from 29°F to 20°F. Normal precipitation for the month is 4.83 in over about 13 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
- 24°F
- Precipitation
- 4.83 in
- Snowfall
- 11.3 in
- Record high
- 60°FDec 7, 1998
- Record low
- -11°FDec 30, 2017
- Chance of a freeze
- 100%
- Daylight
- 9 h 08 min to 8 h 56 min
- Cloud cover
- 70%
- Humidity
- 83%
- Dew point
- 30°F
- Wind
- 15.2 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 | 45°F | 29°F | 58°F 2014 | 14°F 1989 | 40% | 7% |
| Dec 2 | 44°F | 29°F | 57°F 2006 | 9°F 1989 | 41% | 7% |
| Dec 3 | 44°F | 28°F | 55°F 2009 | 15°F 2003 | 41% | 8% |
| Dec 4 | 44°F | 28°F | 59°F 1998 | 13°F 1989 | 41% | 8% |
| Dec 5 | 43°F | 28°F | 56°F 2001 | 11°F 1989 | 41% | 8% |
| Dec 6 | 43°F | 28°F | 54°F 2001 | 11°F 1991 | 41% | 9% |
| Dec 7 | 43°F | 27°F | 60°F 1998 | 10°F 1991 | 41% | 9% |
| Dec 8 | 43°F | 27°F | 53°F 1998 | 8°F 2000 | 41% | 9% |
| Dec 9 | 42°F | 27°F | 48°F 1991 | 4°F 1989 | 41% | 10% |
| Dec 10 | 42°F | 26°F | 52°F 2008 | 8°F 1989 | 41% | 10% |
| Dec 11 | 42°F | 26°F | 52°F 2015 | 10°F 2016 | 41% | 10% |
| Dec 12 | 42°F | 26°F | 53°F 2008 | 12°F 1995 | 41% | 10% |
| Dec 13 | 41°F | 25°F | 53°F 2010 | 8°F 1989 | 41% | 11% |
| Dec 14 | 41°F | 25°F | 49°F 1991 | 1°F 2013 | 41% | 11% |
| Dec 15 | 41°F | 25°F | 51°F 2008 | 7°F 1989 | 41% | 11% |
| Dec 16 | 41°F | 24°F | 52°F 2008 | -5°F 2016 | 41% | 12% |
| Dec 17 | 40°F | 24°F | 47°F 1996 | 1°F 2013 | 41% | 12% |
| Dec 18 | 40°F | 24°F | 52°F 2003 | 7°F 2009 | 41% | 12% |
| Dec 19 | 40°F | 23°F | 49°F 2015 | 9°F 1989 | 41% | 13% |
| Dec 20 | 40°F | 23°F | 49°F 2002 | 6°F 2008 | 41% | 13% |
| Dec 21 | 39°F | 23°F | 51°F 2012 | 2°F 2004 | 41% | 13% |
| Dec 22 | 39°F | 23°F | 53°F 2012 | 2°F 1989 | 41% | 14% |
| Dec 23 | 39°F | 22°F | 52°F 1990 | 0°F 1989 | 41% | 14% |
| Dec 24 | 39°F | 22°F | 50°F 1990 | 0°F 1989 | 41% | 14% |
| Dec 25 | 38°F | 22°F | 57°F 2014 | 4°F 1992 | 41% | 15% |
| Dec 26 | 38°F | 21°F | 47°F 2005 | 9°F 1991 | 40% | 15% |
| Dec 27 | 38°F | 21°F | 53°F 2016 | -1°F 1993 | 40% | 15% |
| Dec 28 | 38°F | 21°F | 52°F 2011 | -4°F 2017 | 40% | 16% |
| Dec 29 | 38°F | 21°F | 47°F 2005 | -5°F 2017 | 40% | 16% |
| Dec 30 | 37°F | 20°F | 47°F 1990 | -11°F 2017 | 40% | 16% |
| Dec 31 | 37°F | 20°F | 47°F 1990 | -1°F 2017 | 40% | 16% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (EST).
- December 1
- sunrise 6:52 AM, sunset 4:00 PM
- December 31
- sunrise 7:12 AM, sunset 4:08 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00176881 (Tenants Harbor), public domain. Records: NOAA GHCN-Daily, station USC00176881, 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.