May weather in Hamilton, MT
The average temperature in Hamilton in May is 51.9°F (38.2°F–65.5°F). Average precipitation: 1.53 inches.
May is a spring month in Hamilton, and is warmer than the annual average of 44.8°F. Daily temperatures swing about 27.3°F between overnight low and afternoon high. Expect about 11 days with precipitation. Daylight averages about 14h 47m. For travel, May is a comfortable month to visit.
Avg High
65.5°F
Avg Low
38.2°F
Precipitation
1.53 in
Daylight
14h 47m
May records in Hamilton
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 82.9°F (2000) | 21.0°F (1954) | 0.41 in (1938) |
| May 2 | 84.9°F (1985) | 21.9°F (1954) | 0.67 in (1950) |
| May 3 | 88.0°F (1903) | 25.0°F (1907) | 0.50 in (1901) |
| May 4 | 86.0°F (1966) | 26.1°F (1922) | 0.70 in (1912) |
| May 5 | 86.0°F (1966) | 21.0°F (2010) | 1.40 in (1971) |
| May 6 | 86.0°F (1992) | 18.0°F (1903) | 1.00 in (1995) |
| May 7 | 86.0°F (1987) | 21.9°F (2010) | 0.57 in (1975) |
| May 8 | 89.1°F (1901) | 21.9°F (2010) | 0.79 in (1952) |
| May 9 | 84.9°F (1994) | 23.0°F (2022) | 0.87 in (1920) |
| May 10 | 89.1°F (1940) | 21.0°F (1946) | 1.00 in (1980) |
| May 11 | 89.1°F (1993) | 24.1°F (2022) | 0.97 in (1981) |
| May 12 | 90.0°F (1993) | 24.1°F (1985) | 1.75 in (1900) |
| May 13 | 91.9°F (1931) | 25.0°F (1953) | 0.75 in (1955) |
| May 14 | 90.0°F (1931) | 0.0°F (1901) | 1.20 in (1955) |
| May 15 | 99.0°F (1934) | 27.0°F (1986) | 2.23 in (1952) |
| May 16 | 90.0°F (2012) | 26.1°F (1974) | 0.56 in (1980) |
| May 17 | 86.0°F (2007) | 27.0°F (1974) | 0.63 in (1949) |
| May 18 | 88.0°F (1901) | 28.0°F (1965) | 1.12 in (1938) |
| May 19 | 90.0°F (2009) | 26.1°F (1974) | 1.62 in (1938) |
| May 20 | 89.1°F (1958) | 30.0°F (1903) | 1.83 in (1969) |
| May 21 | 89.1°F (1919) | 28.0°F (1931) | 1.16 in (1981) |
| May 22 | 90.0°F (1919) | 0.0°F (1901) | 0.78 in (1942) |
| May 23 | 90.0°F (2001) | 27.0°F (1930) | 1.13 in (1980) |
| May 24 | 93.0°F (2001) | 30.0°F (1975) | 1.45 in (1953) |
| May 25 | 91.0°F (1928) | 28.0°F (1904) | 0.63 in (1980) |
| May 26 | 93.9°F (1936) | 27.0°F (1930) | 1.40 in (2021) |
| May 27 | 95.0°F (1936) | 28.0°F (1973) | 0.45 in (1977) |
| May 28 | 91.9°F (1919) | 27.0°F (1922) | 1.20 in (1901) |
| May 29 | 93.0°F (1936) | 28.9°F (1951) | 0.90 in (1901) |
| May 30 | 102.0°F (1936) | 30.0°F (1979) | 0.93 in (1988) |
| May 31 | 93.9°F (1986) | 25.0°F (1917) | 0.98 in (1988) |