May weather in Lebanon, NH
The average temperature in Lebanon in May is 56.7°F (43.7°F–69.7°F). Average precipitation: 3.32 inches.
May is a spring month in Lebanon, and is warmer than the annual average of 46°F. Daily temperatures swing about 26°F between overnight low and afternoon high. Expect about 14 days with precipitation. Daylight averages about 14h 31m. For travel, May is a comfortable month to visit.
Avg High
69.7°F
Avg Low
43.7°F
Precipitation
3.32 in
Daylight
14h 31m
May records in Lebanon
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 86.0°F (2001) | 24.3°F (2008) | 0.77 in (1976) |
| May 2 | 89.1°F (2010) | 25.0°F (1966) | 1.28 in (1989) |
| May 3 | 88.0°F (2001) | 19.9°F (1966) | 1.14 in (1971) |
| May 4 | 84.9°F (2015) | 26.1°F (1978) | 0.83 in (1984) |
| May 5 | 79.0°F (2010) | 23.0°F (1966) | 0.73 in (2024) |
| May 6 | 82.9°F (1977) | 27.1°F (2020) | 0.87 in (1989) |
| May 7 | 88.0°F (2000) | 25.0°F (1968) | 0.50 in (2009) |
| May 8 | 84.9°F (1979) | 25.0°F (1968) | 1.11 in (2012) |
| May 9 | 91.9°F (1979) | 26.1°F (1985) | 0.75 in (1978) |
| May 10 | 89.1°F (2015) | 28.2°F (2016) | 0.95 in (2000) |
| May 11 | 84.0°F (2001) | 26.1°F (1966) | 1.02 in (2013) |
| May 12 | 89.1°F (2022) | 27.0°F (1999) | 2.18 in (1981) |
| May 13 | 89.1°F (2022) | 25.0°F (2005) | 2.13 in (2006) |
| May 14 | 91.0°F (2022) | 27.1°F (2020) | 1.09 in (1964) |
| May 15 | 90.0°F (1974) | 28.0°F (1971) | 1.38 in (2011) |
| May 16 | 84.9°F (1998) | 30.0°F (2000) | 0.91 in (2022) |
| May 17 | 91.0°F (2017) | 28.2°F (2023) | 1.24 in (1970) |
| May 18 | 93.0°F (2017) | 22.1°F (2023) | 1.56 in (1977) |
| May 19 | 90.0°F (1971) | 28.0°F (2002) | 1.99 in (1999) |
| May 20 | 91.9°F (1975) | 26.1°F (2002) | 1.20 in (2023) |
| May 21 | 91.9°F (2021) | 30.9°F (1964) | 1.38 in (1973) |
| May 22 | 95.0°F (1977) | 28.9°F (2002) | 0.75 in (2004) |
| May 23 | 93.0°F (1975) | 31.1°F (2015) | 0.88 in (1986) |
| May 24 | 90.0°F (1964) | 28.0°F (1963) | 1.80 in (1979) |
| May 25 | 95.0°F (2010) | 30.0°F (1963) | 2.17 in (1967) |
| May 26 | 96.1°F (2010) | 31.1°F (2009) | 1.32 in (2017) |
| May 27 | 93.9°F (2020) | 28.0°F (1969) | 0.93 in (1983) |
| May 28 | 93.9°F (1978) | 33.1°F (1968) | 0.90 in (2009) |
| May 29 | 91.0°F (1978) | 33.1°F (1970) | 2.47 in (1984) |
| May 30 | 91.0°F (1987) | 30.0°F (1967) | 1.76 in (1984) |
| May 31 | 93.0°F (2013) | 32.0°F (1966) | 1.88 in (2025) |