May weather in Darby, MT
The average temperature in Darby in May is 51.5°F (39.0°F–64.0°F). Average precipitation: 1.60 inches.
May is a spring month in Darby, and is warmer than the annual average of 44.6°F. Daily temperatures swing about 25°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 14h 45m. For travel, May is a comfortable month to visit.
Avg High
64.0°F
Avg Low
39.0°F
Precipitation
1.60 in
Daylight
14h 45m
May records in Darby
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 81.0°F (2000) | 19.0°F (1946) | 1.25 in (1978) |
| May 2 | 86.0°F (1985) | 17.1°F (1954) | 0.52 in (1950) |
| May 3 | 86.0°F (1966) | 21.0°F (1935) | 0.31 in (2010) |
| May 4 | 86.0°F (1966) | 23.0°F (1959) | 0.48 in (1976) |
| May 5 | 87.1°F (1966) | 21.0°F (1982) | 1.12 in (1971) |
| May 6 | 82.0°F (1953) | 19.9°F (1926) | 0.90 in (1995) |
| May 7 | 88.0°F (1987) | 21.9°F (2010) | 0.66 in (1970) |
| May 8 | 88.0°F (1987) | 19.0°F (1999) | 0.92 in (1952) |
| May 9 | 88.0°F (1987) | 21.9°F (1933) | 0.30 in (2018) |
| May 10 | 87.1°F (1940) | 21.9°F (1946) | 1.53 in (2005) |
| May 11 | 84.9°F (1941) | 23.0°F (1973) | 1.14 in (1981) |
| May 12 | 88.0°F (1993) | 19.0°F (1985) | 0.73 in (1942) |
| May 13 | 88.0°F (1993) | 19.9°F (1953) | 0.39 in (1955) |
| May 14 | 88.0°F (1993) | 26.1°F (1983) | 1.05 in (1955) |
| May 15 | 86.0°F (1934) | 26.1°F (1943) | 1.35 in (1952) |
| May 16 | 87.1°F (1988) | 24.1°F (1986) | 1.68 in (1987) |
| May 17 | 88.0°F (2006) | 25.0°F (1943) | 1.33 in (1977) |
| May 18 | 87.1°F (2006) | 24.1°F (1965) | 1.55 in (1938) |
| May 19 | 88.0°F (2006) | 23.0°F (2003) | 2.15 in (1938) |
| May 20 | 88.0°F (2002) | 27.0°F (1946) | 1.68 in (1969) |
| May 21 | 84.9°F (1928) | 24.1°F (1934) | 1.47 in (2002) |
| May 22 | 90.0°F (1988) | 23.0°F (1960) | 0.62 in (1942) |
| May 23 | 84.9°F (2001) | 24.1°F (1986) | 0.93 in (1980) |
| May 24 | 90.0°F (2001) | 27.0°F (1950) | 1.38 in (1990) |
| May 25 | 91.9°F (2001) | 19.0°F (1926) | 0.44 in (1945) |
| May 26 | 93.0°F (1986) | 26.1°F (1975) | 0.80 in (1909) |
| May 27 | 90.0°F (1966) | 28.9°F (1926) | 0.46 in (1945) |
| May 28 | 91.0°F (1986) | 25.0°F (1955) | 1.12 in (1964) |
| May 29 | 95.0°F (2003) | 26.1°F (1951) | 1.00 in (1988) |
| May 30 | 95.0°F (1936) | 28.0°F (1979) | 1.09 in (1988) |
| May 31 | 95.0°F (1986) | 27.0°F (1937) | 0.80 in (1971) |