May weather in Colstrip, MT
The average temperature in Colstrip in May is 53.4°F (41.9°F–64.9°F). Average precipitation: 3.14 inches. Average snowfall is 0.5 inches.
May is a spring month in Colstrip, and is warmer than the annual average of 46.1°F. Daily temperatures swing about 23°F between overnight low and afternoon high. Expect about 12 days with precipitation. Daylight averages about 14h 44m. For travel, May is a comfortable month to visit.
Avg High
64.9°F
Avg Low
41.9°F
Precipitation
3.14 in
Snow
0.5 in
May records in Colstrip
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 84.0°F (1955) | 19.9°F (1954) | 0.38 in (2010) |
| May 2 | 89.1°F (1985) | 18.0°F (2005) | 1.08 in (2008) |
| May 3 | 88.0°F (1986) | 12.9°F (1954) | 2.14 in (1955) |
| May 4 | 89.1°F (1936) | 19.9°F (1967) | 1.20 in (2007) |
| May 5 | 91.0°F (1934) | 23.0°F (2019) | 1.34 in (1976) |
| May 6 | 91.0°F (1966) | 7.0°F (1952) | 0.98 in (2007) |
| May 7 | 93.0°F (1934) | 21.0°F (1929) | 1.00 in (2024) |
| May 8 | 91.0°F (1934) | 17.1°F (1929) | 2.64 in (2005) |
| May 9 | 86.0°F (1987) | 25.0°F (1938) | 0.84 in (1953) |
| May 10 | 90.0°F (2025) | 19.9°F (1927) | 1.27 in (2011) |
| May 11 | 88.0°F (1936) | 18.0°F (1968) | 0.87 in (1947) |
| May 12 | 93.9°F (1960) | 16.0°F (1943) | 1.12 in (1981) |
| May 13 | 91.9°F (2001) | 25.0°F (1934) | 1.22 in (1940) |
| May 14 | 95.0°F (1936) | 24.1°F (1953) | 1.20 in (1968) |
| May 15 | 93.0°F (1936) | 26.1°F (1946) | 1.37 in (1977) |
| May 16 | 93.9°F (1934) | 28.0°F (1943) | 0.73 in (1987) |
| May 17 | 93.0°F (1972) | 25.0°F (1942) | 1.34 in (1978) |
| May 18 | 96.1°F (1948) | 25.0°F (1942) | 2.38 in (1978) |
| May 19 | 93.9°F (1948) | 26.1°F (1942) | 1.08 in (1978) |
| May 20 | 93.0°F (1964) | 24.1°F (1931) | 1.52 in (2011) |
| May 21 | 96.1°F (1980) | 21.0°F (1963) | 2.02 in (2011) |
| May 22 | 96.1°F (1980) | 27.0°F (1963) | 1.25 in (2011) |
| May 23 | 95.0°F (1980) | 28.0°F (1959) | 2.00 in (2024) |
| May 24 | 91.9°F (1941) | 28.9°F (2013) | 1.47 in (1990) |
| May 25 | 93.9°F (1931) | 26.1°F (1953) | 1.78 in (1997) |
| May 26 | 98.1°F (1934) | 30.0°F (1932) | 1.10 in (1929) |
| May 27 | 96.1°F (1934) | 25.0°F (1965) | 0.93 in (2014) |
| May 28 | 98.1°F (1934) | 23.0°F (1947) | 0.76 in (1960) |
| May 29 | 99.0°F (1934) | 27.0°F (1947) | 2.15 in (1946) |
| May 30 | 95.0°F (1934) | 30.9°F (1964) | 2.85 in (2013) |
| May 31 | 91.9°F (1936) | 28.9°F (1954) | 2.68 in (2013) |