May weather in Columbia Falls, MT
The average temperature in Columbia Falls in May is 51.6°F (38.1°F–65.1°F). Average precipitation: 1.84 inches. Average snowfall is 0.2 inches.
May is a spring month in Columbia Falls, and is warmer than the annual average of 43.1°F. Daily temperatures swing about 27°F between overnight low and afternoon high. Expect about 12 days with precipitation. Daylight averages about 15h 0m. For travel, May is a comfortable month to visit.
Avg High
65.1°F
Avg Low
38.1°F
Precipitation
1.84 in
Snow
0.2 in
May records in Columbia Falls
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 86.0°F (2023) | 17.1°F (1899) | 0.76 in (1951) |
| May 2 | 84.9°F (2023) | 20.1°F (2013) | 1.36 in (1964) |
| May 3 | 82.0°F (1966) | 23.0°F (2001) | 0.84 in (2007) |
| May 4 | 84.9°F (2023) | 21.9°F (1963) | 1.34 in (1986) |
| May 5 | 84.9°F (1966) | 25.2°F (2020) | 0.71 in (1979) |
| May 6 | 82.0°F (1953) | 21.9°F (1999) | 1.14 in (2023) |
| May 7 | 82.0°F (1992) | 24.1°F (2000) | 0.79 in (1989) |
| May 8 | 82.0°F (1987) | 21.0°F (1999) | 1.00 in (1933) |
| May 9 | 82.9°F (1994) | 21.9°F (2002) | 0.64 in (1905) |
| May 10 | 84.9°F (1936) | 23.0°F (2006) | 0.63 in (1910) |
| May 11 | 87.1°F (1993) | 21.0°F (2012) | 0.58 in (1970) |
| May 12 | 90.0°F (1993) | 23.0°F (1953) | 1.35 in (1900) |
| May 13 | 87.1°F (1993) | 24.1°F (1983) | 1.29 in (1900) |
| May 14 | 84.9°F (1993) | 21.2°F (2022) | 0.60 in (1899) |
| May 15 | 84.9°F (1924) | 25.2°F (2013) | 0.95 in (1981) |
| May 16 | 86.0°F (1973) | 26.1°F (1992) | 0.35 in (1900) |
| May 17 | 86.0°F (1973) | 25.0°F (2003) | 0.68 in (1959) |
| May 18 | 87.1°F (2006) | 25.0°F (1966) | 1.21 in (1902) |
| May 19 | 87.1°F (2002) | 26.2°F (2021) | 0.74 in (1901) |
| May 20 | 84.9°F (1897) | 28.0°F (2001) | 0.63 in (1927) |
| May 21 | 86.0°F (1919) | 25.0°F (2001) | 1.00 in (2002) |
| May 22 | 86.0°F (1919) | 25.2°F (2022) | 1.38 in (1948) |
| May 23 | 87.1°F (2001) | 26.1°F (1953) | 1.15 in (1980) |
| May 24 | 89.1°F (1934) | 28.0°F (1964) | 0.84 in (2007) |
| May 25 | 87.1°F (1961) | 24.1°F (1964) | 0.72 in (1990) |
| May 26 | 90.0°F (1986) | 25.0°F (1918) | 0.90 in (1998) |
| May 27 | 95.0°F (1936) | 28.0°F (1918) | 0.68 in (1998) |
| May 28 | 91.0°F (1986) | 30.9°F (1914) | 0.80 in (1996) |
| May 29 | 93.9°F (1936) | 28.0°F (1951) | 0.53 in (1938) |
| May 30 | 95.0°F (1936) | 26.1°F (2001) | 0.92 in (1988) |
| May 31 | 91.9°F (1986) | 28.0°F (1950) | 0.94 in (1990) |