Armstrong County Weather in December
Average highs run from 56°F on December 1 to 51°F on December 31, and lows from 26°F to 21°F. Normal precipitation for the month is 0.68 in over about 3 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
- 52°F
- Average low
- 23°F
- Precipitation
- 0.68 in
- Snowfall
- 1.4 in
- Record high
- 84°FDec 24, 2025
- Record low
- -8°FDec 22, 1989
- Chance of a freeze
- 100%
- Daylight
- 9 h 59 min to 9 h 51 min
- Cloud cover
- 53%
- Humidity
- 59%
- Dew point
- 24°F
- Wind
- 11.2 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 | 56°F | 26°F | 76°F 1951 | 8°F 1985 | 8% | 2% |
| Dec 2 | 55°F | 26°F | 78°F 2012 | 4°F 1985 | 8% | 2% |
| Dec 3 | 55°F | 26°F | 77°F 2017 | 13°F 1978 | 8% | 2% |
| Dec 4 | 55°F | 26°F | 79°F 1958 | 10°F 2009 | 8% | 2% |
| Dec 5 | 54°F | 25°F | 74°F 1987 | 4°F 1972 | 8% | 2% |
| Dec 6 | 54°F | 25°F | 71°F 1981 | -1°F 1972 | 8% | 2% |
| Dec 7 | 54°F | 25°F | 77°F 2007 | 3°F 2005 | 8% | 2% |
| Dec 8 | 53°F | 24°F | 77°F 1984 | -3°F 2005 | 8% | 3% |
| Dec 9 | 53°F | 24°F | 80°F 1996 | -4°F 1978 | 8% | 3% |
| Dec 10 | 53°F | 24°F | 76°F 1981 | 4°F 1972 | 8% | 3% |
| Dec 11 | 53°F | 24°F | 79°F 2025 | 4°F 1961 | 8% | 3% |
| Dec 12 | 52°F | 23°F | 76°F 1995 | -3°F 1961 | 8% | 3% |
| Dec 13 | 52°F | 23°F | 73°F 1948 | 6°F 1985 | 9% | 3% |
| Dec 14 | 52°F | 23°F | 77°F 2021 | 1°F 1987 | 9% | 3% |
| Dec 15 | 52°F | 23°F | 76°F 2010 | -5°F 1987 | 9% | 3% |
| Dec 16 | 52°F | 23°F | 75°F 2006 | -5°F 1987 | 9% | 3% |
| Dec 17 | 51°F | 22°F | 77°F 1980 | 0°F 2016 | 9% | 3% |
| Dec 18 | 51°F | 22°F | 74°F 1978 | -3°F 2016 | 9% | 3% |
| Dec 19 | 51°F | 22°F | 72°F 2013 | 0°F 1996 | 9% | 4% |
| Dec 20 | 51°F | 22°F | 71°F 1954 | 1°F 1983 | 9% | 4% |
| Dec 21 | 51°F | 22°F | 77°F 2003 | -4°F 1983 | 9% | 4% |
| Dec 22 | 51°F | 22°F | 83°F 2025 | -8°F 1989 | 9% | 4% |
| Dec 23 | 51°F | 22°F | 80°F 1955 | -6°F 1990 | 9% | 4% |
| Dec 24 | 51°F | 21°F | 84°F 2025 | -3°F 1983 | 9% | 4% |
| Dec 25 | 51°F | 21°F | 80°F 2025 | 2°F 1983 | 9% | 4% |
| Dec 26 | 51°F | 21°F | 75°F 2005 | 5°F 1990 | 8% | 4% |
| Dec 27 | 51°F | 21°F | 77°F 2025 | 6°F 1987 | 8% | 4% |
| Dec 28 | 51°F | 21°F | 73°F 1955 | -2°F 1983 | 8% | 4% |
| Dec 29 | 51°F | 21°F | 74°F 1965 | -5°F 1983 | 8% | 4% |
| Dec 30 | 51°F | 21°F | 75°F 2008 | -1°F 1990 | 8% | 4% |
| Dec 31 | 51°F | 21°F | 73°F 2011 | 3°F 1968 | 8% | 4% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (CST).
- December 1
- sunrise 7:35 AM, sunset 5:34 PM
- December 31
- sunrise 7:53 AM, sunset 5:44 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00419380 (Vigo Park), public domain. Records: NOAA GHCN-Daily, station USW00023047, 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.