Brookhaven Weather in December
Average highs run from 48°F on December 1 to 41°F on December 31, and lows from 32°F to 26°F. Normal precipitation for the month is 3.20 in over about 14 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
- 44°F
- Average low
- 29°F
- Precipitation
- 3.20 in
- Snowfall
- 1.6 in
- Record high
- 77°FDec 9, 1966
- Record low
- -13°FDec 25, 1983
- Chance of a freeze
- 100%
- Daylight
- 9 h 35 min to 9 h 25 min
- Cloud cover
- 76%
- Humidity
- 86%
- Dew point
- 28°F
- Wind
- 5.6 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 | 48°F | 32°F | 75°F 2006 | 11°F 1964 | 43% | 3% |
| Dec 2 | 48°F | 32°F | 74°F 1982 | 7°F 1976 | 43% | 3% |
| Dec 3 | 48°F | 31°F | 76°F 1982 | 0°F 1976 | 43% | 3% |
| Dec 4 | 47°F | 31°F | 69°F 2012 | 3°F 1966 | 44% | 3% |
| Dec 5 | 47°F | 31°F | 75°F 1982 | 11°F 1974 | 44% | 3% |
| Dec 6 | 47°F | 31°F | 67°F 1951 | 9°F 2007 | 44% | 3% |
| Dec 7 | 46°F | 31°F | 76°F 1951 | 5°F 1977 | 44% | 4% |
| Dec 8 | 46°F | 30°F | 74°F 1966 | 3°F 1882 | 44% | 4% |
| Dec 9 | 46°F | 30°F | 77°F 1966 | 5°F 1880 | 44% | 4% |
| Dec 10 | 46°F | 30°F | 75°F 1971 | -1°F 1958 | 44% | 4% |
| Dec 11 | 45°F | 30°F | 71°F 2021 | 1°F 1958 | 44% | 4% |
| Dec 12 | 45°F | 29°F | 71°F 1965 | 2°F 1962 | 45% | 4% |
| Dec 13 | 45°F | 29°F | 69°F 2015 | -3°F 1962 | 45% | 4% |
| Dec 14 | 45°F | 29°F | 71°F 2001 | 9°F 1960 | 45% | 5% |
| Dec 15 | 44°F | 29°F | 77°F 1971 | 5°F 1963 | 45% | 5% |
| Dec 16 | 44°F | 29°F | 70°F 2021 | -1°F 1951 | 45% | 5% |
| Dec 17 | 44°F | 28°F | 68°F 1984 | 2°F 1951 | 45% | 5% |
| Dec 18 | 44°F | 28°F | 69°F 2016 | 0°F 1989 | 45% | 5% |
| Dec 19 | 43°F | 28°F | 65°F 1891 | 1°F 1975 | 46% | 5% |
| Dec 20 | 43°F | 28°F | 64°F 1891 | 0°F 1963 | 46% | 6% |
| Dec 21 | 43°F | 28°F | 77°F 1891 | -3°F 1989 | 46% | 6% |
| Dec 22 | 43°F | 27°F | 74°F 2013 | -10°F 1989 | 46% | 6% |
| Dec 23 | 43°F | 27°F | 70°F 2015 | -3°F 1989 | 46% | 6% |
| Dec 24 | 42°F | 27°F | 71°F 2015 | -11°F 1983 | 46% | 7% |
| Dec 25 | 42°F | 27°F | 71°F 1982 | -13°F 1983 | 47% | 7% |
| Dec 26 | 42°F | 27°F | 69°F 2016 | -5°F 1983 | 47% | 7% |
| Dec 27 | 42°F | 26°F | 72°F 2015 | -3°F 1950 | 47% | 7% |
| Dec 28 | 42°F | 26°F | 72°F 1982 | -8°F 1892 | 47% | 8% |
| Dec 29 | 42°F | 26°F | 71°F 2024 | 5°F 1880 | 47% | 8% |
| Dec 30 | 41°F | 26°F | 70°F 2022 | -4°F 1892 | 48% | 8% |
| Dec 31 | 41°F | 26°F | 71°F 1972 | -9°F 1880 | 48% | 8% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (EST).
- December 1
- sunrise 7:21 AM, sunset 4:56 PM
- December 31
- sunrise 7:40 AM, sunset 5:05 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00013736 (Morgantown Hart Fld), public domain. Records: NOAA GHCN-Daily, station USW00013736, 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.