May weather in West Haven, CT
The average temperature in West Haven in May is 58.5°F (49.4°F–67.7°F). Average precipitation: 3.54 inches.
May is a spring month in West Haven, and is warmer than the annual average of 52°F. Daily temperatures swing about 18.3°F between overnight low and afternoon high. Expect about 13 days with precipitation. Daylight averages about 14h 19m. For travel, May is a comfortable month to visit.
Avg High
67.7°F
Avg Low
49.4°F
Precipitation
3.54 in
Daylight
14h 19m
May records in West Haven
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 81.0°F (1957) | 30.2°F (2008) | 1.49 in (2014) |
| May 2 | 82.0°F (2018) | 34.0°F (1948) | 0.66 in (1956) |
| May 3 | 84.0°F (2018) | 33.1°F (1966) | 1.43 in (1949) |
| May 4 | 84.9°F (1965) | 34.0°F (1964) | 0.87 in (2021) |
| May 5 | 81.0°F (1955) | 35.1°F (1974) | 1.02 in (2017) |
| May 6 | 78.1°F (1949) | 35.1°F (1969) | 1.19 in (1958) |
| May 7 | 82.0°F (2004) | 32.0°F (1967) | 1.34 in (1967) |
| May 8 | 78.1°F (1964) | 33.1°F (1968) | 1.11 in (1954) |
| May 9 | 78.1°F (1964) | 32.0°F (1956) | 1.06 in (1969) |
| May 10 | 82.0°F (1970) | 34.0°F (1966) | 0.51 in (2012) |
| May 11 | 81.0°F (1953) | 35.1°F (1966) | 1.28 in (1951) |
| May 12 | 82.0°F (1959) | 39.0°F (1969) | 3.55 in (2006) |
| May 13 | 86.0°F (1956) | 34.0°F (2005) | 1.59 in (2002) |
| May 14 | 75.9°F (2022) | 35.1°F (2020) | 1.17 in (1957) |
| May 15 | 80.1°F (1976) | 37.9°F (2013) | 1.07 in (2024) |
| May 16 | 80.1°F (1951) | 37.9°F (1966) | 1.74 in (2006) |
| May 17 | 80.1°F (1974) | 37.0°F (1952) | 1.46 in (1970) |
| May 18 | 84.9°F (2017) | 34.0°F (2023) | 2.32 in (2011) |
| May 19 | 86.0°F (2021) | 37.9°F (2003) | 1.45 in (1966) |
| May 20 | 84.9°F (1975) | 35.1°F (2002) | 1.92 in (2023) |
| May 21 | 84.0°F (1962) | 37.9°F (1950) | 1.84 in (1954) |
| May 22 | 86.0°F (2022) | 36.0°F (2002) | 1.62 in (1949) |
| May 23 | 89.1°F (2021) | 39.9°F (2002) | 0.99 in (1960) |
| May 24 | 84.9°F (1975) | 37.9°F (1956) | 1.39 in (1951) |
| May 25 | 84.0°F (2007) | 37.0°F (1967) | 2.10 in (1967) |
| May 26 | 91.9°F (2010) | 37.9°F (1949) | 2.18 in (2003) |
| May 27 | 84.9°F (2014) | 37.0°F (1961) | 1.47 in (1961) |
| May 28 | 82.9°F (1959) | 37.0°F (1961) | 1.01 in (2021) |
| May 29 | 91.9°F (1969) | 42.1°F (1957) | 1.61 in (1968) |
| May 30 | 87.1°F (2011) | 39.9°F (2004) | 1.48 in (2016) |
| May 31 | 95.0°F (2022) | 36.0°F (1961) | 2.35 in (1972) |