Greenwich Weather in January
Average highs run from 35°F on January 1 to 33°F on January 31, and lows from 14°F to 10°F. Normal precipitation for the month is 2.74 in.
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
- 33°F
- Average low
- 11°F
- Precipitation
- 2.74 in
- Snowfall
- 16.5 in
- Record high
- 66°FJan 6, 2007
- Record low
- -35°FJan 27, 1994
- Chance of a freeze
- 100%
- Daylight
- 9 h 04 min to 9 h 55 min
- Cloud cover
- 70%
- Humidity
- 91%
- Dew point
- 18°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 |
|---|---|---|---|---|---|---|
| Jan 1 | 35°F | 14°F | 54°F 1966 | -23°F 2018 | 23% | |
| Jan 2 | 35°F | 14°F | 47°F 1979 | -25°F 2018 | 24% | |
| Jan 3 | 34°F | 14°F | 53°F 1950 | -25°F 2014 | 24% | |
| Jan 4 | 34°F | 13°F | 63°F 1950 | -31°F 1981 | 24% | |
| Jan 5 | 34°F | 13°F | 62°F 1950 | -23°F 1996 | 24% | |
| Jan 6 | 34°F | 13°F | 66°F 2007 | -30°F 1996 | 25% | |
| Jan 7 | 34°F | 13°F | 48°F 1946 | -25°F 1968 | 25% | |
| Jan 8 | 34°F | 12°F | 61°F 2008 | -33°F 1968 | 25% | |
| Jan 9 | 33°F | 12°F | 56°F 2008 | -30°F 1968 | 25% | |
| Jan 10 | 33°F | 12°F | 49°F 1972 | -25°F 1968 | 25% | |
| Jan 11 | 33°F | 12°F | 60°F 2020 | -33°F 1968 | 25% | |
| Jan 12 | 33°F | 12°F | 57°F 2018 | -33°F 1968 | 26% | |
| Jan 13 | 33°F | 11°F | 53°F 2005 | -27°F 1981 | 26% | |
| Jan 14 | 33°F | 11°F | 58°F 2005 | -29°F 1957 | 26% | |
| Jan 15 | 33°F | 11°F | 64°F 1995 | -23°F 2009 | 26% | |
| Jan 16 | 33°F | 11°F | 62°F 1995 | -34°F 1994 | 26% | |
| Jan 17 | 33°F | 11°F | 51°F 1973 | -26°F 1971 | 26% | |
| Jan 18 | 33°F | 11°F | 54°F 1990 | -26°F 1977 | 26% | |
| Jan 19 | 33°F | 11°F | 56°F 1996 | -30°F 1976 | 26% | |
| Jan 20 | 33°F | 10°F | 48°F 2018 | -29°F 1994 | 26% | |
| Jan 21 | 33°F | 10°F | 53°F 2006 | -27°F 1994 | 26% | |
| Jan 22 | 33°F | 10°F | 54°F 1959 | -25°F 1970 | 26% | |
| Jan 23 | 33°F | 10°F | 52°F 1957 | -32°F 1976 | 26% | |
| Jan 24 | 33°F | 10°F | 51°F 1999 | -30°F 2011 | 26% | |
| Jan 25 | 33°F | 10°F | 54°F 2010 | -23°F 2004 | 26% | |
| Jan 26 | 33°F | 10°F | 57°F 1950 | -28°F 1994 | 26% | |
| Jan 27 | 33°F | 10°F | 57°F 1974 | -35°F 1994 | 26% | |
| Jan 28 | 33°F | 10°F | 53°F 2002 | -27°F 2003 | 26% | |
| Jan 29 | 33°F | 10°F | 47°F 1950 | -22°F 1963 | 26% | |
| Jan 30 | 33°F | 10°F | 53°F 2013 | -22°F 2026 | 26% | |
| Jan 31 | 33°F | 10°F | 53°F 1974 | -28°F 1948 | 26% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (EST).
- January 1
- sunrise 7:26 AM, sunset 4:30 PM
- January 31
- sunrise 7:10 AM, sunset 5:05 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00301068 (Buskirk), public domain. Records: NOAA GHCN-Daily, station USW00014750, 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.