May weather in Harlowton, MT
The average temperature in Harlowton in May is 50.7°F (37.1°F–64.3°F). Average precipitation: 2.53 inches. Average snowfall is 0.3 inches.
May is a spring month in Harlowton, and is warmer than the annual average of 43.8°F. Daily temperatures swing about 27.2°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 14h 48m. For travel, May is cool.
Avg High
64.3°F
Avg Low
37.1°F
Precipitation
2.53 in
Snow
0.3 in
May records in Harlowton
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 82.9°F (2000) | 12.9°F (2013) | 0.55 in (1978) |
| May 2 | 82.9°F (1985) | 16.0°F (2005) | 0.80 in (1964) |
| May 3 | 82.9°F (1952) | 16.0°F (2024) | 0.77 in (1960) |
| May 4 | 84.0°F (1966) | 14.0°F (1967) | 0.64 in (1986) |
| May 5 | 84.0°F (1966) | 17.1°F (1967) | 1.08 in (1984) |
| May 6 | 88.0°F (1992) | 12.9°F (2013) | 0.44 in (1983) |
| May 7 | 84.9°F (1992) | 23.0°F (2010) | 1.15 in (1970) |
| May 8 | 87.1°F (1987) | 19.9°F (1961) | 0.59 in (1952) |
| May 9 | 82.9°F (1987) | 16.0°F (2002) | 0.79 in (1963) |
| May 10 | 86.0°F (1949) | 16.0°F (2010) | 1.09 in (1967) |
| May 11 | 86.0°F (1960) | 12.9°F (1953) | 1.34 in (1981) |
| May 12 | 90.0°F (2001) | 3.9°F (1953) | 1.05 in (1995) |
| May 13 | 90.0°F (2001) | 14.0°F (1953) | 0.64 in (1962) |
| May 14 | 84.9°F (1987) | 19.9°F (1953) | 0.82 in (2018) |
| May 15 | 88.0°F (2013) | 25.0°F (1983) | 1.12 in (1991) |
| May 16 | 88.0°F (1988) | 24.1°F (1986) | 0.92 in (1981) |
| May 17 | 86.0°F (2012) | 26.1°F (1986) | 0.63 in (1987) |
| May 18 | 84.9°F (1992) | 23.0°F (1950) | 0.59 in (2003) |
| May 19 | 91.0°F (1954) | 19.9°F (1997) | 0.79 in (1982) |
| May 20 | 88.0°F (1958) | 24.1°F (1968) | 1.27 in (1957) |
| May 21 | 88.0°F (1980) | 24.1°F (1963) | 0.75 in (2007) |
| May 22 | 89.1°F (1980) | 25.0°F (1963) | 1.32 in (2008) |
| May 23 | 87.1°F (1951) | 27.0°F (1959) | 1.65 in (2008) |
| May 24 | 87.1°F (1988) | 27.0°F (1964) | 1.30 in (2011) |
| May 25 | 88.0°F (1999) | 27.0°F (1950) | 1.73 in (2011) |
| May 26 | 87.1°F (1969) | 23.0°F (1975) | 1.16 in (1962) |
| May 27 | 87.1°F (1966) | 28.9°F (1967) | 0.62 in (2010) |
| May 28 | 86.0°F (1958) | 28.0°F (2012) | 1.33 in (1982) |
| May 29 | 87.1°F (1984) | 27.0°F (2012) | 1.00 in (1989) |
| May 30 | 88.0°F (1986) | 30.0°F (1973) | 1.97 in (1967) |
| May 31 | 89.1°F (1986) | 26.1°F (1982) | 0.81 in (2018) |