Greenwich Weather in March
Average highs run from 39°F on March 1 to 51°F on March 31, and lows from 15°F to 27°F. Normal precipitation for the month is 3.21 in.
March day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
March at a glance
- Average high
- 44°F
- Average low
- 20°F
- Precipitation
- 3.21 in
- Snowfall
- 11.4 in
- Record high
- 86°FMar 31, 1998
- Record low
- -24°FMar 4, 1950
- Chance of a freeze
- 100%
- Daylight
- 11 h 13 min to 12 h 41 min
- Cloud cover
- 67%
- Humidity
- 84%
- Dew point
- 27°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 |
|---|---|---|---|---|---|---|
| Mar 1 | 39°F | 15°F | 67°F 2017 | -10°F 2015 | 21% | |
| Mar 2 | 39°F | 15°F | 60°F 1991 | -10°F 1967 | 21% | |
| Mar 3 | 40°F | 16°F | 60°F 2002 | -17°F 1950 | 20% | |
| Mar 4 | 40°F | 16°F | 56°F 2024 | -24°F 1950 | 20% | |
| Mar 5 | 40°F | 16°F | 64°F 1964 | -13°F 1948 | 20% | |
| Mar 6 | 40°F | 17°F | 61°F 2022 | -23°F 1948 | 19% | |
| Mar 7 | 41°F | 17°F | 63°F 1974 | -19°F 2007 | 19% | |
| Mar 8 | 41°F | 17°F | 65°F 2012 | -15°F 2007 | 19% | |
| Mar 9 | 41°F | 18°F | 77°F 2016 | -18°F 2007 | 18% | |
| Mar 10 | 42°F | 18°F | 72°F 2026 | -14°F 1996 | 18% | |
| Mar 11 | 42°F | 18°F | 67°F 2025 | -6°F 1996 | 17% | |
| Mar 12 | 42°F | 19°F | 66°F 1977 | -11°F 1948 | 17% | |
| Mar 13 | 43°F | 19°F | 71°F 1990 | -12°F 1948 | 17% | |
| Mar 14 | 43°F | 19°F | 71°F 1946 | -9°F 2014 | 16% | |
| Mar 15 | 44°F | 20°F | 71°F 1990 | -10°F 1993 | 16% | |
| Mar 16 | 44°F | 20°F | 80°F 1990 | 1°F 1970 | 15% | |
| Mar 17 | 44°F | 21°F | 69°F 1990 | 2°F 1997 | 15% | |
| Mar 18 | 45°F | 21°F | 71°F 2012 | -11°F 1976 | 14% | |
| Mar 19 | 45°F | 21°F | 76°F 2012 | -15°F 1967 | 14% | |
| Mar 20 | 46°F | 22°F | 79°F 2012 | 1°F 1967 | 13% | |
| Mar 21 | 46°F | 22°F | 78°F 2012 | -5°F 2007 | 13% | |
| Mar 22 | 46°F | 23°F | 80°F 2012 | 4°F 1956 | 13% | |
| Mar 23 | 47°F | 23°F | 70°F 1979 | 9°F 1971 | 12% | |
| Mar 24 | 47°F | 24°F | 65°F 1979 | 4°F 1997 | 12% | |
| Mar 25 | 48°F | 24°F | 69°F 2021 | 2°F 2014 | 11% | |
| Mar 26 | 48°F | 24°F | 75°F 1945 | -1°F 1960 | 11% | |
| Mar 27 | 49°F | 25°F | 74°F 1998 | 2°F 2014 | 10% | |
| Mar 28 | 49°F | 25°F | 84°F 1945 | 8°F 1982 | 10% | |
| Mar 29 | 50°F | 26°F | 83°F 1946 | 6°F 1959 | 10% | |
| Mar 30 | 50°F | 26°F | 85°F 1998 | 10°F 2008 | 9% | |
| Mar 31 | 51°F | 27°F | 86°F 1998 | 8°F 1954 | 9% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (EDT).
- March 1
- sunrise 6:30 AM, sunset 5:43 PM
- March 31
- sunrise 6:38 AM, sunset 7:19 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.