Harlem Weather in December
Average highs run from 63°F on December 1 to 58°F on December 31, and lows from 44°F to 40°F. Normal precipitation for the month is 3.82 in over about 10 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
- 60°F
- Average low
- 42°F
- Precipitation
- 3.82 in
- Snowfall
- 0.1 in
- Record high
- 82°FDec 11, 1923
- Record low
- 2°FDec 13, 1962
- Chance of a freeze
- 81%
- Daylight
- 10 h 06 min to 9 h 59 min
- Cloud cover
- 57%
- Humidity
- 81%
- Dew point
- 40°F
- Wind
- 5.8 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 | 63°F | 44°F | 81°F 1933 | 13°F 1955 | 27% | 0% |
| Dec 2 | 63°F | 44°F | 75°F 1998 | 14°F 1964 | 27% | 0% |
| Dec 3 | 63°F | 44°F | 78°F 1991 | 18°F 1976 | 28% | 0% |
| Dec 4 | 63°F | 44°F | 76°F 1982 | 20°F 1979 | 28% | 0% |
| Dec 5 | 62°F | 44°F | 78°F 1916 | 19°F 1966 | 28% | 0% |
| Dec 6 | 62°F | 44°F | 77°F 1956 | 18°F 1966 | 29% | 0% |
| Dec 7 | 62°F | 43°F | 79°F 1998 | 11°F 1937 | 29% | 0% |
| Dec 8 | 62°F | 43°F | 80°F 1922 | 17°F 1984 | 29% | 0% |
| Dec 9 | 61°F | 43°F | 75°F 1923 | 12°F 1927 | 30% | 0% |
| Dec 10 | 61°F | 43°F | 80°F 1923 | 17°F 1917 | 30% | 0% |
| Dec 11 | 61°F | 43°F | 82°F 1923 | 15°F 1917 | 30% | 0% |
| Dec 12 | 61°F | 43°F | 80°F 1923 | 10°F 1958 | 30% | 0% |
| Dec 13 | 61°F | 42°F | 79°F 1923 | 2°F 1962 | 31% | 0% |
| Dec 14 | 60°F | 42°F | 78°F 1956 | 3°F 1962 | 31% | 0% |
| Dec 15 | 60°F | 42°F | 75°F 1929 | 13°F 1917 | 31% | 0% |
| Dec 16 | 60°F | 42°F | 79°F 1929 | 15°F 1963 | 31% | 0% |
| Dec 17 | 60°F | 42°F | 79°F 1933 | 13°F 1963 | 31% | 0% |
| Dec 18 | 60°F | 42°F | 79°F 1933 | 12°F 1963 | 31% | 0% |
| Dec 19 | 59°F | 42°F | 78°F 1984 | 9°F 1963 | 32% | 0% |
| Dec 20 | 59°F | 41°F | 79°F 1967 | 9°F 1963 | 32% | 0% |
| Dec 21 | 59°F | 41°F | 77°F 1967 | 11°F 1901 | 32% | 0% |
| Dec 22 | 59°F | 41°F | 76°F 1998 | 13°F 1976 | 32% | 0% |
| Dec 23 | 59°F | 41°F | 74°F 1931 | 11°F 1976 | 32% | 0% |
| Dec 24 | 59°F | 41°F | 73°F 1918 | 10°F 1989 | 32% | 0% |
| Dec 25 | 59°F | 41°F | 75°F 1926 | 3°F 1983 | 32% | 0% |
| Dec 26 | 58°F | 41°F | 76°F 1955 | 3°F 1983 | 32% | 1% |
| Dec 27 | 58°F | 41°F | 76°F 1955 | 5°F 1983 | 32% | 1% |
| Dec 28 | 58°F | 41°F | 80°F 1922 | 9°F 1925 | 32% | 1% |
| Dec 29 | 58°F | 40°F | 77°F 1984 | 15°F 1925 | 32% | 1% |
| Dec 30 | 58°F | 40°F | 77°F 1984 | 9°F 1917 | 32% | 1% |
| Dec 31 | 58°F | 40°F | 74°F 1984 | 13°F 1909 | 32% | 1% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (EST).
- December 1
- sunrise 7:15 AM, sunset 5:21 PM
- December 31
- sunrise 7:33 AM, sunset 5:32 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00013837 (Augusta Daniel Fld AP), public domain. Records: NOAA GHCN-Daily, station USC00099157, 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.