Princeton Weather in December
Average highs run from 80°F on December 1 to 76°F on December 31, and lows from 60°F to 56°F. Normal precipitation for the month is 2.26 in over about 8 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
- 78°F
- Average low
- 58°F
- Precipitation
- 2.26 in
- Record high
- 89°FDec 4, 2018
- Record low
- 29°FDec 24, 1989
- Chance of a freeze
- 1%
- Daylight
- 10 h 40 min to 10 h 34 min
- Cloud cover
- 51%
- Humidity
- 78%
- Dew point
- 64°F
- Wind
- 11.9 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 | 80°F | 60°F | 87°F 1997 | 51°F 1992 | 28% |
| Dec 2 | 80°F | 60°F | 86°F 2010 | 44°F 2005 | 27% |
| Dec 3 | 79°F | 60°F | 88°F 2018 | 44°F 2005 | 27% |
| Dec 4 | 79°F | 60°F | 89°F 2018 | 43°F 1989 | 27% |
| Dec 5 | 79°F | 60°F | 88°F 2018 | 46°F 1989 | 27% |
| Dec 6 | 79°F | 60°F | 85°F 2002 | 47°F 2010 | 27% |
| Dec 7 | 79°F | 60°F | 84°F 1994 | 38°F 2010 | 27% |
| Dec 8 | 79°F | 60°F | 87°F 2016 | 35°F 2010 | 27% |
| Dec 9 | 79°F | 59°F | 87°F 2017 | 40°F 2010 | 27% |
| Dec 10 | 79°F | 59°F | 86°F 1997 | 39°F 2020 | 27% |
| Dec 11 | 79°F | 59°F | 87°F 2009 | 38°F 2014 | 26% |
| Dec 12 | 79°F | 59°F | 88°F 2012 | 37°F 2017 | 26% |
| Dec 13 | 78°F | 59°F | 85°F 1997 | 40°F 1992 | 26% |
| Dec 14 | 78°F | 59°F | 85°F 2016 | 33°F 2010 | 26% |
| Dec 15 | 78°F | 59°F | 85°F 2000 | 34°F 2010 | 26% |
| Dec 16 | 78°F | 58°F | 87°F 2015 | 35°F 2010 | 26% |
| Dec 17 | 78°F | 58°F | 86°F 2015 | 42°F 1998 | 25% |
| Dec 18 | 78°F | 58°F | 86°F 2000 | 42°F 2003 | 25% |
| Dec 19 | 78°F | 58°F | 86°F 2015 | 44°F 2003 | 25% |
| Dec 20 | 78°F | 58°F | 86°F 2016 | 39°F 2003 | 25% |
| Dec 21 | 77°F | 58°F | 84°F 2016 | 39°F 2003 | 25% |
| Dec 22 | 77°F | 57°F | 84°F 2017 | 45°F 1995 | 25% |
| Dec 23 | 77°F | 57°F | 85°F 2014 | 39°F 2012 | 25% |
| Dec 24 | 77°F | 57°F | 85°F 2006 | 29°F 1989 | 25% |
| Dec 25 | 77°F | 57°F | 87°F 2014 | 29°F 1989 | 25% |
| Dec 26 | 77°F | 57°F | 85°F 1997 | 31°F 1989 | 25% |
| Dec 27 | 77°F | 57°F | 85°F 1997 | 34°F 1989 | 25% |
| Dec 28 | 77°F | 57°F | 84°F 2015 | 35°F 2010 | 24% |
| Dec 29 | 77°F | 56°F | 85°F 2015 | 36°F 2010 | 24% |
| Dec 30 | 77°F | 56°F | 86°F 2015 | 44°F 2010 | 24% |
| Dec 31 | 76°F | 56°F | 86°F 2015 | 34°F 2000 | 24% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (EST).
- December 1
- sunrise 6:51 AM, sunset 5:31 PM
- December 31
- sunrise 7:08 AM, sunset 5:42 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00087020 (Perrine 4W), public domain. Records: NOAA GHCN-Daily, station USC00087020, 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.