Sycamore Weather in December
Average highs run from 66°F on December 1 to 60°F on December 31, and lows from 42°F to 37°F.
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
- 63°F
- Average low
- 39°F
- Record high
- 84°FDec 8, 1978
- Record low
- 6°FDec 13, 1962
- Chance of a freeze
- 95%
- Daylight
- 10 h 14 min to 10 h 07 min
- Cloud cover
- 55%
- Humidity
- 80%
- Dew point
- 44°F
- Wind
- 8.7 mph
Every day of the month
A wet day has at least 0.01 inch of precipitation.
| Date | Normal high | Normal low | Record high | Record low | Chance wet |
|---|---|---|---|---|---|
| Dec 1 | 66°F | 42°F | 81°F 1931 | 21°F 1929 | |
| Dec 2 | 65°F | 42°F | 80°F 1931 | 24°F 2010 | |
| Dec 3 | 65°F | 42°F | 82°F 1970 | 23°F 1935 | |
| Dec 4 | 65°F | 41°F | 81°F 1982 | 23°F 1929 | |
| Dec 5 | 65°F | 41°F | 82°F 1982 | 24°F 2024 | |
| Dec 6 | 65°F | 41°F | 80°F 1943 | 24°F 2019 | |
| Dec 7 | 64°F | 41°F | 80°F 1924 | 15°F 1937 | |
| Dec 8 | 64°F | 41°F | 84°F 1978 | 20°F 1937 | |
| Dec 9 | 64°F | 41°F | 81°F 1943 | 22°F 1927 | |
| Dec 10 | 64°F | 40°F | 80°F 1943 | 24°F 1928 | |
| Dec 11 | 64°F | 40°F | 82°F 1986 | 23°F 1937 | |
| Dec 12 | 63°F | 40°F | 81°F 1931 | 16°F 1934 | |
| Dec 13 | 63°F | 40°F | 80°F 1927 | 6°F 1962 | |
| Dec 14 | 63°F | 40°F | 83°F 1972 | 11°F 1962 | |
| Dec 15 | 63°F | 39°F | 79°F 1925 | 19°F 1944 | |
| Dec 16 | 63°F | 39°F | 80°F 1929 | 18°F 1951 | |
| Dec 17 | 62°F | 39°F | 83°F 1971 | 20°F 1943 | |
| Dec 18 | 62°F | 39°F | 79°F 1924 | 19°F 1943 | |
| Dec 19 | 62°F | 39°F | 81°F 1956 | 17°F 1963 | |
| Dec 20 | 62°F | 39°F | 79°F 1967 | 18°F 1929 | |
| Dec 21 | 62°F | 38°F | 81°F 1967 | 20°F 1945 | |
| Dec 22 | 61°F | 38°F | 81°F 1941 | 20°F 1973 | |
| Dec 23 | 61°F | 38°F | 80°F 1990 | 19°F 1989 | |
| Dec 24 | 61°F | 38°F | 79°F 1970 | 12°F 1989 | |
| Dec 25 | 61°F | 38°F | 82°F 1911 | 9°F 1983 | |
| Dec 26 | 61°F | 38°F | 80°F 1942 | 10°F 1983 | |
| Dec 27 | 60°F | 38°F | 79°F 1940 | 12°F 1983 | |
| Dec 28 | 60°F | 37°F | 81°F 2015 | 14°F 1925 | |
| Dec 29 | 60°F | 37°F | 81°F 1946 | 20°F 1925 | |
| Dec 30 | 60°F | 37°F | 80°F 1932 | 20°F 1961 | |
| Dec 31 | 60°F | 37°F | 80°F 2021 | 20°F 1983 |
Chance of rain
Sunrise and sunset
Times for 2026, local time (EST).
- December 1
- sunrise 7:17 AM, sunset 5:31 PM
- December 31
- sunrise 7:34 AM, sunset 5:41 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00090406 (Ashburn 3 Ene), public domain. Records: NOAA GHCN-Daily, station USC00098703, 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.