Byron Weather in December
Average highs run from 40°F on December 1 to 31°F on December 31, and lows from 26°F to 18°F. Normal precipitation for the month is 2.10 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
- 34°F
- Average low
- 21°F
- Precipitation
- 2.10 in
- Snowfall
- 11.4 in
- Record high
- 62°FDec 4, 2012
- Record low
- -14°FDec 14, 1904
- Chance of a freeze
- 100%
- Daylight
- 9 h 16 min to 9 h 05 min
- Cloud cover
- 75%
- Humidity
- 87%
- Dew point
- 23°F
- Wind
- 11.9 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 | 40°F | 26°F | 58°F 2010 | 1°F 1897 | 24% | |
| Dec 2 | 39°F | 25°F | 57°F 2012 | 6°F 1893 | 25% | |
| Dec 3 | 39°F | 25°F | 58°F 1920 | -11°F 1895 | 26% | |
| Dec 4 | 38°F | 25°F | 62°F 2012 | -7°F 1893 | 26% | |
| Dec 5 | 38°F | 24°F | 59°F 2013 | -3°F 1895 | 27% | |
| Dec 6 | 38°F | 24°F | 56°F 1912 | 6°F 2007 | 28% | |
| Dec 7 | 37°F | 24°F | 50°F 1924 | 7°F 1893 | 28% | |
| Dec 8 | 37°F | 23°F | 57°F 2004 | -2°F 2005 | 29% | |
| Dec 9 | 36°F | 23°F | 53°F 1923 | -5°F 1917 | 29% | |
| Dec 10 | 36°F | 23°F | 57°F 1911 | 0°F 1917 | 30% | |
| Dec 11 | 36°F | 23°F | 58°F 1899 | -3°F 1917 | 30% | |
| Dec 12 | 35°F | 22°F | 58°F 1896 | -2°F 1917 | 31% | |
| Dec 13 | 35°F | 22°F | 56°F 1920 | -13°F 1895 | 31% | |
| Dec 14 | 35°F | 22°F | 57°F 1920 | -14°F 1904 | 31% | |
| Dec 15 | 34°F | 21°F | 57°F 1891 | -7°F 1917 | 32% | |
| Dec 16 | 34°F | 21°F | 56°F 2011 | -3°F 1916 | 32% | |
| Dec 17 | 34°F | 21°F | 54°F 2006 | -3°F 1904 | 33% | |
| Dec 18 | 33°F | 21°F | 52°F 2006 | -8°F 1897 | 33% | |
| Dec 19 | 33°F | 20°F | 53°F 1895 | -7°F 1897 | 34% | |
| Dec 20 | 33°F | 20°F | 56°F 1894 | -7°F 2004 | 34% | |
| Dec 21 | 33°F | 20°F | 55°F 1894 | -2°F 1897 | 35% | |
| Dec 22 | 32°F | 20°F | 55°F 1891 | -12°F 1897 | 35% | |
| Dec 23 | 32°F | 19°F | 56°F 1893 | -14°F 1896 | 35% | |
| Dec 24 | 32°F | 19°F | 59°F 1893 | -14°F 1896 | 36% | |
| Dec 25 | 32°F | 19°F | 58°F 1895 | -8°F 1914 | 36% | |
| Dec 26 | 31°F | 19°F | 42°F 1922 | -7°F 1914 | 37% | |
| Dec 27 | 31°F | 18°F | 52°F 2008 | -6°F 1925 | 37% | |
| Dec 28 | 31°F | 18°F | 60°F 2008 | -10°F 1924 | 37% | |
| Dec 29 | 31°F | 18°F | 51°F 2013 | -13°F 1909 | 37% | |
| Dec 30 | 31°F | 18°F | 48°F 1906 | -7°F 1899 | 38% | |
| Dec 31 | 31°F | 18°F | 51°F 2004 | 0°F 1899 | 38% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (EST).
- December 1
- sunrise 7:47 AM, sunset 5:03 PM
- December 31
- sunrise 8:06 AM, sunset 5:11 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00204793 (Linden Wwtp), public domain. Records: NOAA GHCN-Daily, station USC00203947, 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.