Princeton Weather in January
Average highs run from 36°F on January 1 to 35°F on January 31, and lows from 15°F to 12°F. Normal precipitation for the month is 3.51 in over about 13 wet days.
January day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
January at a glance
- Average high
- 35°F
- Average low
- 13°F
- Precipitation
- 3.51 in
- Snowfall
- 13.6 in
- Record high
- 70°FJan 12, 2020
- Record low
- -13°FJan 31, 2026
- Chance of a freeze
- 100%
- Daylight
- 9 h 08 min to 9 h 58 min
- Cloud cover
- 63%
- Humidity
- 89%
- Dew point
- 19°F
- Wind
- 6.0 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 |
|---|---|---|---|---|---|---|
| Jan 1 | 36°F | 15°F | 61°F 2011 | -6°F 2018 | 41% | 19% |
| Jan 2 | 36°F | 15°F | 58°F 2000 | -7°F 1999 | 41% | 19% |
| Jan 3 | 36°F | 15°F | 60°F 2000 | -2°F 2014 | 41% | 20% |
| Jan 4 | 35°F | 15°F | 60°F 2000 | -2°F 2014 | 41% | 20% |
| Jan 5 | 35°F | 15°F | 60°F 2007 | 2°F 2026 | 42% | 20% |
| Jan 6 | 35°F | 14°F | 69°F 2007 | 3°F 1999 | 42% | 20% |
| Jan 7 | 35°F | 14°F | 58°F 2012 | 0°F 2015 | 42% | 20% |
| Jan 8 | 35°F | 14°F | 66°F 2008 | -5°F 2015 | 42% | 21% |
| Jan 9 | 35°F | 14°F | 59°F 2008 | -4°F 2004 | 42% | 21% |
| Jan 10 | 35°F | 14°F | 54°F 2016 | -5°F 2004 | 42% | 21% |
| Jan 11 | 34°F | 13°F | 66°F 2020 | -3°F 2015 | 42% | 21% |
| Jan 12 | 34°F | 13°F | 70°F 2020 | 2°F 2022 | 41% | 21% |
| Jan 13 | 34°F | 13°F | 62°F 2018 | 3°F 2004 | 41% | 21% |
| Jan 14 | 34°F | 13°F | 60°F 2005 | -9°F 2004 | 41% | 21% |
| Jan 15 | 34°F | 13°F | 48°F 2020 | -9°F 2004 | 41% | 21% |
| Jan 16 | 34°F | 13°F | 50°F 2021 | -10°F 2004 | 41% | 22% |
| Jan 17 | 34°F | 12°F | 48°F 2012 | -7°F 2009 | 41% | 22% |
| Jan 18 | 34°F | 12°F | 58°F 2006 | -7°F 2003 | 40% | 22% |
| Jan 19 | 34°F | 12°F | 45°F 1999 | -9°F 2003 | 40% | 22% |
| Jan 20 | 34°F | 12°F | 56°F 2006 | -1°F 2025 | 40% | 22% |
| Jan 21 | 34°F | 12°F | 58°F 2006 | -8°F 2025 | 40% | 22% |
| Jan 22 | 34°F | 12°F | 44°F 2017 | -10°F 2025 | 39% | 22% |
| Jan 23 | 34°F | 12°F | 50°F 2002 | -5°F 2000 | 39% | 22% |
| Jan 24 | 34°F | 12°F | 57°F 1999 | -7°F 2011 | 39% | 22% |
| Jan 25 | 34°F | 12°F | 55°F 2010 | -4°F 2004 | 39% | 22% |
| Jan 26 | 34°F | 12°F | 52°F 2002 | -1°F 2004 | 38% | 22% |
| Jan 27 | 34°F | 12°F | 56°F 2002 | -5°F 2026 | 38% | 22% |
| Jan 28 | 34°F | 12°F | 56°F 2002 | -6°F 2003 | 38% | 21% |
| Jan 29 | 35°F | 12°F | 60°F 2002 | -10°F 2015 | 38% | 21% |
| Jan 30 | 35°F | 12°F | 60°F 2013 | -5°F 2026 | 37% | 21% |
| Jan 31 | 35°F | 12°F | 61°F 2013 | -13°F 2026 | 37% | 21% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (EST).
- January 1
- sunrise 7:17 AM, sunset 4:25 PM
- January 31
- sunrise 7:02 AM, sunset 5:00 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00190408 (Barre Falls Dam), public domain. Records: NOAA GHCN-Daily, station USW00004780, 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.