Weather on March 31
New Haven, CT
55 Years of Data
About This Date
March 31st in New Haven, CT typically brings cool spring weather, with average highs around 54°F and lows near 37°F. Over 55 years of records, the warmest March 31st was in 1998 (64°F average), while the coldest was 1991 (34°F) — a 30°F range across recorded history. Rain or other precipitation has occurred on about 49% of March 31st dates historically, with the wettest March 31st recording 6.35" of rain. The last decade has been 2.0°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.0°F warmer on this date compared to 20-30 years ago.
Planning for March 31st in New Haven, CT? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 68° | 47° | 57° | 0.18" | — |
| 2025 | 62° | 46° | 54° | 0.81" | — |
| 2024 | 58° | 43° | 50° | — | — |
| 2023 | 50° | 25° | 38° | — | — |
| 2022 | 61° | 43° | 52° | 0.03" | — |
| 2021 | 60° | 39° | 50° | 0.79" | — |
| 2020 | 47° | 40° | 43° | — | — |
| 2019 | 58° | 42° | 50° | 0.71" | — |
| 2018 | 54° | 38° | 46° | — | — |
| 2017 | 41° | 36° | 38° | 1.83" | — |
| 2016 | 61° | 36° | 48° | — | — |
| 2015 | 44° | 36° | 40° | — | — |
| 2014 | 47° | 33° | 40° | 1.24" | — |
| 2013 | 54° | 28° | 41° | 0.33" | — |
| 2012 | 47° | 39° | 43° | 0.18" | — |
| 2011 | 46° | 36° | 41° | 0.38" | — |
| 2010 | 55° | 43° | 49° | 0.23" | — |
| 2009 | 56° | 38° | 47° | — | — |
| 2008 | 49° | 34° | 41° | 0.71" | — |
| 2007 | 50° | 31° | 41° | — | — |
| 2006 | 61° | 31° | 46° | — | — |
| 2005 | 53° | 30° | 42° | — | — |
| 2004 | 48° | 40° | 44° | 5.33" | — |
| 2003 | 41° | 31° | 36° | — | — |
| 2002 | 60° | 42° | 51° | 0.64" | — |
| 2001 | 49° | 31° | 40° | — | — |
| 2000 | 56° | 29° | 42° | — | — |
| 1998warmest | 79° | 49° | 64° | — | — |
| 1997 | 57° | 50° | 54° | 0.18" | — |
| 1996 | 54° | 25° | 39° | — | — |
| 1995 | 51° | 38° | 44° | — | — |
| 1994 | 54° | 26° | 40° | — | — |
| 1993 | 61° | 40° | 50° | — | — |
| 1992 | 55° | 40° | 47° | 0.51" | — |
| 1991coldest | 43° | 25° | 34° | — | — |
| 1990 | 46° | 31° | 38° | 0.08" | — |
| 1989 | 42° | 36° | 39° | 0.58" | — |
| 1988 | 64° | 37° | 51° | — | — |
| 1987 | 57° | 50° | 54° | 6.35" | — |
| 1986 | 73° | 39° | 56° | — | — |
| 1985 | 58° | 37° | 47° | 0.13" | — |
| 1984 | 49° | 33° | 41° | — | — |
| 1983 | 49° | 34° | 41° | — | — |
| 1982 | 50° | 38° | 44° | 0.64" | — |
| 1981 | 70° | 49° | 59° | — | — |
| 1980 | 51° | 32° | 42° | 2.03" | — |
| 1979 | 63° | 45° | 54° | 0.05" | — |
| 1978 | 55° | 35° | 45° | — | — |
| 1977 | 65° | 47° | 56° | 0.25" | — |
| 1976 | 51° | 46° | 49° | 0.05" | — |
| 1975 | 45° | 31° | 38° | — | — |
| 1974 | 44° | 38° | 41° | 1.4" | — |
| 1973 | 51° | 42° | 47° | 0.23" | — |
| 1972 | 42° | 38° | 40° | — | — |
| 1971 | 48° | 33° | 41° | — | — |
New Haven, CT Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
New Haven, CT Monthly Precipitation
Average rainfall and snowfall per month, in inches.
New Haven, CT Daily Temperature Calendar
Average daily high temperature for every day of the year. Each cell is the climatological mean for that calendar day across 55 years of NOAA data.
Best Time to Visit New Haven, CT
New Haven, CT has no months that meet our "pleasant" threshold — every season has tradeoffs.