May weather in Hysham, MT
The average temperature in Hysham in May is 56.1°F (42.5°F–69.8°F). Average precipitation: 2.47 inches. Average snowfall is 0.8 inches.
May is a spring month in Hysham, and is warmer than the annual average of 47.2°F. Daily temperatures swing about 27.3°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 14h 47m. For travel, May is a comfortable month to visit.
Avg High
69.8°F
Avg Low
42.5°F
Precipitation
2.47 in
Snow
0.8 in
May records in Hysham
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 91.9°F (1981) | 19.9°F (1950) | 0.81 in (1988) |
| May 2 | 93.9°F (1985) | 15.1°F (1951) | 0.75 in (2008) |
| May 3 | 89.1°F (1985) | 14.0°F (1954) | 0.92 in (1955) |
| May 4 | 90.0°F (1966) | 21.0°F (1967) | 0.75 in (2003) |
| May 5 | 90.0°F (1966) | 24.1°F (1967) | 0.87 in (1986) |
| May 6 | 93.0°F (1966) | 27.0°F (1961) | 1.50 in (1975) |
| May 7 | 91.0°F (1992) | 23.0°F (2010) | 1.25 in (1988) |
| May 8 | 89.1°F (1985) | 26.1°F (1984) | 1.50 in (2024) |
| May 9 | 86.0°F (1977) | 25.0°F (1968) | 1.60 in (1986) |
| May 10 | 89.1°F (1977) | 26.1°F (1946) | 2.00 in (2011) |
| May 11 | 90.0°F (1960) | 21.0°F (1968) | 1.40 in (1981) |
| May 12 | 98.1°F (1960) | 28.0°F (1973) | 0.60 in (1983) |
| May 13 | 93.9°F (2001) | 19.9°F (2004) | 1.78 in (1962) |
| May 14 | 90.0°F (1984) | 25.0°F (1953) | 0.52 in (2025) |
| May 15 | 95.0°F (1984) | 28.0°F (1946) | 2.17 in (1977) |
| May 16 | 91.9°F (1988) | 30.0°F (1968) | 0.47 in (2004) |
| May 17 | 95.0°F (1972) | 30.9°F (2002) | 1.60 in (1977) |
| May 18 | 96.1°F (1948) | 28.0°F (1965) | 1.20 in (1978) |
| May 19 | 93.0°F (1954) | 24.1°F (1997) | 1.33 in (1978) |
| May 20 | 96.1°F (1964) | 28.0°F (2003) | 1.46 in (2011) |
| May 21 | 99.0°F (1980) | 28.0°F (1963) | 1.50 in (1998) |
| May 22 | 100.0°F (1980) | 30.0°F (1969) | 1.25 in (1968) |
| May 23 | 93.9°F (1980) | 28.9°F (1947) | 1.12 in (1997) |
| May 24 | 93.9°F (1985) | 30.0°F (2002) | 1.29 in (2024) |
| May 25 | 90.0°F (1952) | 30.0°F (1986) | 1.00 in (1980) |
| May 26 | 98.1°F (1969) | 28.9°F (1989) | 0.65 in (1973) |
| May 27 | 97.0°F (1969) | 23.0°F (1991) | 2.05 in (2023) |
| May 28 | 95.0°F (1958) | 23.0°F (1947) | 0.53 in (2010) |
| May 29 | 97.0°F (1988) | 24.1°F (1947) | 1.29 in (1946) |
| May 30 | 95.0°F (1984) | 36.0°F (1946) | 3.20 in (2013) |
| May 31 | 93.9°F (1972) | 28.0°F (1982) | 1.10 in (2013) |