May weather in Watertown Town, MA
The average temperature in Watertown Town in May is 58.8°F (48.2°F–69.4°F). Average precipitation: 3.64 inches.
May is a spring month in Watertown Town, and is warmer than the annual average of 51.2°F. Daily temperatures swing about 21.2°F between overnight low and afternoon high. Daylight averages about 14h 25m. For travel, May is a comfortable month to visit.
Avg High
69.4°F
Avg Low
48.2°F
Precipitation
3.64 in
Daylight
14h 25m
May records in Watertown Town
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 86.0°F (1985) | 28.9°F (1978) | 1.16 in (1991) |
| May 2 | 90.0°F (2001) | 30.9°F (1995) | 0.70 in (2012) |
| May 3 | 96.1°F (2001) | 30.9°F (1964) | 0.95 in (2002) |
| May 4 | 95.0°F (2001) | 32.0°F (1985) | 1.46 in (1972) |
| May 5 | 93.9°F (2001) | 33.1°F (1974) | 1.20 in (1994) |
| May 6 | 84.9°F (2000) | 34.0°F (1992) | 0.82 in (2009) |
| May 7 | 86.0°F (1977) | 24.1°F (2001) | 0.85 in (1998) |
| May 8 | 93.0°F (2000) | 30.9°F (1968) | 1.15 in (1967) |
| May 9 | 90.0°F (1964) | 28.0°F (1985) | 0.62 in (1966) |
| May 10 | 95.0°F (1979) | 32.0°F (1977) | 3.38 in (1977) |
| May 11 | 96.1°F (1979) | 33.1°F (1966) | 1.72 in (1998) |
| May 12 | 91.0°F (1985) | 33.1°F (1963) | 1.09 in (1998) |
| May 13 | 93.0°F (2001) | 36.0°F (2020) | 0.83 in (1974) |
| May 14 | 86.0°F (1991) | 33.1°F (1987) | 2.20 in (2002) |
| May 15 | 90.0°F (2022) | 34.0°F (1985) | 1.45 in (1978) |
| May 16 | 87.1°F (2018) | 30.0°F (2001) | 1.21 in (2018) |
| May 17 | 89.1°F (1991) | 37.0°F (1983) | 1.28 in (1990) |
| May 18 | 93.9°F (2017) | 36.0°F (2023) | 1.58 in (1970) |
| May 19 | 99.0°F (2017) | 35.1°F (2002) | 1.54 in (2010) |
| May 20 | 93.0°F (1986) | 37.9°F (2002) | 1.28 in (1997) |
| May 21 | 95.0°F (1975) | 36.0°F (1994) | 1.71 in (2023) |
| May 22 | 93.9°F (1975) | 39.9°F (1990) | 0.72 in (1976) |
| May 23 | 97.0°F (2022) | 41.0°F (1967) | 3.52 in (2025) |
| May 24 | 95.0°F (1964) | 35.1°F (1963) | 1.10 in (1979) |
| May 25 | 96.1°F (1964) | 39.9°F (1990) | 1.14 in (2013) |
| May 26 | 91.0°F (2016) | 36.0°F (1992) | 3.78 in (1967) |
| May 27 | 95.0°F (1965) | 32.0°F (1978) | 0.40 in (1984) |
| May 28 | 90.0°F (1966) | 36.0°F (1968) | 0.63 in (2024) |
| May 29 | 97.0°F (2016) | 39.0°F (2014) | 2.13 in (2021) |
| May 30 | 90.0°F (1998) | 37.0°F (1985) | 2.00 in (1990) |
| May 31 | 95.0°F (1987) | 42.1°F (1966) | 3.15 in (1984) |