May weather in Garrison, ND
The average temperature in Garrison in May is 54.1°F (42.4°F–65.8°F). Average precipitation: 2.82 inches. Average snowfall is 1.3 inches.
May is a spring month in Garrison, and is warmer than the annual average of 41.5°F. Daily temperatures swing about 23.4°F between overnight low and afternoon high. Expect about 10 days with precipitation. Daylight averages about 14h 55m. For travel, May is a comfortable month to visit.
Avg High
65.8°F
Avg Low
42.4°F
Precipitation
2.82 in
Snow
1.3 in
May records in Garrison
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 87.1°F (1987) | 19.9°F (1961) | 0.87 in (1967) |
| May 2 | 84.9°F (1952) | 17.1°F (2005) | 0.78 in (1988) |
| May 3 | 90.0°F (1952) | 12.0°F (1967) | 0.43 in (1964) |
| May 4 | 82.9°F (1980) | 15.1°F (1967) | 0.43 in (1950) |
| May 5 | 91.0°F (1986) | 18.0°F (1954) | 1.35 in (1965) |
| May 6 | 89.1°F (2016) | 19.0°F (1989) | 1.58 in (2007) |
| May 7 | 88.0°F (1992) | 17.1°F (2002) | 1.36 in (2015) |
| May 8 | 88.0°F (1992) | 21.0°F (1980) | 1.49 in (2005) |
| May 9 | 86.0°F (2025) | 17.1°F (1981) | 0.56 in (1995) |
| May 10 | 86.0°F (1977) | 23.0°F (1996) | 0.73 in (2008) |
| May 11 | 91.9°F (2025) | 23.0°F (1968) | 1.31 in (2000) |
| May 12 | 95.0°F (2025) | 19.9°F (1953) | 0.82 in (1983) |
| May 13 | 95.0°F (2025) | 24.1°F (2004) | 1.16 in (2023) |
| May 14 | 89.1°F (1977) | 24.1°F (1959) | 1.31 in (1962) |
| May 15 | 91.9°F (1987) | 26.1°F (2005) | 1.00 in (2025) |
| May 16 | 86.0°F (1972) | 21.9°F (2009) | 1.72 in (2025) |
| May 17 | 88.0°F (1972) | 21.9°F (2002) | 1.11 in (2015) |
| May 18 | 93.0°F (1994) | 25.0°F (1968) | 0.53 in (1949) |
| May 19 | 88.0°F (2006) | 27.0°F (1968) | 0.61 in (1994) |
| May 20 | 88.0°F (2006) | 28.0°F (1968) | 1.03 in (1987) |
| May 21 | 88.0°F (1980) | 24.1°F (1963) | 1.60 in (2005) |
| May 22 | 95.0°F (1980) | 24.1°F (1963) | 0.79 in (2021) |
| May 23 | 95.0°F (1980) | 27.0°F (1992) | 0.76 in (1986) |
| May 24 | 88.0°F (2014) | 28.9°F (2002) | 1.18 in (2024) |
| May 25 | 90.0°F (1977) | 28.9°F (1995) | 1.68 in (2009) |
| May 26 | 91.0°F (1969) | 26.1°F (1984) | 1.44 in (2007) |
| May 27 | 96.1°F (1969) | 28.9°F (2008) | 0.76 in (2010) |
| May 28 | 90.0°F (1980) | 25.0°F (1965) | 0.89 in (1977) |
| May 29 | 91.0°F (1958) | 30.9°F (1969) | 1.67 in (1973) |
| May 30 | 93.9°F (1988) | 34.0°F (2015) | 0.91 in (1949) |
| May 31 | 90.0°F (1984) | 33.1°F (1964) | 2.23 in (2007) |