Westport Weather in March
Average highs run from 45°F on March 1 to 55°F on March 31, and lows from 26°F to 35°F. Normal precipitation for the month is 4.73 in over about 10 wet days.
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
- 49°F
- Average low
- 30°F
- Precipitation
- 4.73 in
- Snowfall
- 5.9 in
- Record high
- 84°FMar 13, 1990
- Record low
- 4°FMar 19, 1967
- Chance of a freeze
- 100%
- Daylight
- 11 h 16 min to 12 h 39 min
- Cloud cover
- 63%
- Humidity
- 83%
- Dew point
- 32°F
- Wind
- 8.7 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 | 45°F | 26°F | 59°F 1972 | 6°F 1980 | 32% | 12% |
| Mar 2 | 45°F | 27°F | 61°F 2004 | 8°F 1962 | 32% | 12% |
| Mar 3 | 45°F | 27°F | 65°F 2024 | 8°F 1950 | 32% | 12% |
| Mar 4 | 45°F | 27°F | 58°F 1974 | 5°F 1950 | 32% | 12% |
| Mar 5 | 46°F | 27°F | 67°F 1974 | 12°F 1978 | 32% | 12% |
| Mar 6 | 46°F | 28°F | 59°F 1976 | 9°F 2015 | 33% | 11% |
| Mar 7 | 46°F | 28°F | 67°F 1987 | 10°F 1990 | 33% | 11% |
| Mar 8 | 47°F | 28°F | 69°F 1987 | 11°F 1986 | 33% | 11% |
| Mar 9 | 47°F | 28°F | 64°F 2021 | 9°F 2007 | 33% | 11% |
| Mar 10 | 47°F | 29°F | 70°F 2006 | 8°F 1984 | 33% | 10% |
| Mar 11 | 47°F | 29°F | 67°F 1977 | 13°F 1960 | 33% | 10% |
| Mar 12 | 48°F | 29°F | 67°F 2021 | 11°F 1984 | 33% | 10% |
| Mar 13 | 48°F | 30°F | 84°F 1990 | 16°F 1998 | 33% | 10% |
| Mar 14 | 48°F | 30°F | 70°F 2012 | 16°F 1993 | 33% | 10% |
| Mar 15 | 49°F | 30°F | 72°F 2024 | 12°F 1993 | 33% | 9% |
| Mar 16 | 49°F | 30°F | 65°F 1990 | 15°F 1992 | 33% | 9% |
| Mar 17 | 49°F | 31°F | 64°F 1990 | 14°F 1967 | 33% | 9% |
| Mar 18 | 49°F | 31°F | 76°F 2011 | 9°F 1967 | 33% | 9% |
| Mar 19 | 50°F | 31°F | 68°F 2012 | 4°F 1967 | 33% | 8% |
| Mar 20 | 50°F | 32°F | 68°F 2010 | 11°F 1949 | 34% | 8% |
| Mar 21 | 51°F | 32°F | 66°F 2012 | 14°F 1986 | 34% | 8% |
| Mar 22 | 51°F | 32°F | 71°F 2012 | 17°F 1988 | 34% | 7% |
| Mar 23 | 51°F | 32°F | 71°F 2012 | 19°F 1959 | 34% | 7% |
| Mar 24 | 52°F | 33°F | 66°F 1988 | 20°F 1956 | 34% | 7% |
| Mar 25 | 52°F | 33°F | 68°F 1987 | 15°F 1956 | 34% | 6% |
| Mar 26 | 52°F | 33°F | 79°F 2021 | 15°F 1960 | 35% | 6% |
| Mar 27 | 53°F | 34°F | 74°F 2007 | 20°F 1966 | 35% | 6% |
| Mar 28 | 53°F | 34°F | 76°F 1991 | 17°F 1966 | 35% | 5% |
| Mar 29 | 54°F | 34°F | 80°F 1998 | 19°F 1966 | 36% | 5% |
| Mar 30 | 54°F | 35°F | 68°F 2002 | 16°F 1970 | 36% | 5% |
| Mar 31 | 55°F | 35°F | 74°F 1998 | 21°F 1964 | 36% | 4% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (EDT).
- March 1
- sunrise 6:28 AM, sunset 5:44 PM
- March 31
- sunrise 6:38 AM, sunset 7:17 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00067970 (Stamford 5 N), public domain. Records: NOAA GHCN-Daily, station USW00094702, 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.