May weather in Plentywood, MT
The average temperature in Plentywood in May is 52.0°F (37.5°F–66.5°F). Average precipitation: 2.04 inches.
May is a spring month in Plentywood, and is warmer than the annual average of 39.4°F. Daily temperatures swing about 29°F between overnight low and afternoon high. Expect about 8 days with precipitation. Daylight averages about 15h 3m. For travel, May is cool.
Avg High
66.5°F
Avg Low
37.5°F
Precipitation
2.04 in
Daylight
15h 3m
May records in Plentywood
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 81.0°F (2020) | 17.1°F (2002) | 0.68 in (1972) |
| May 2 | 87.1°F (2000) | 19.9°F (2005) | 0.57 in (1964) |
| May 3 | 84.9°F (1998) | 9.0°F (2005) | 1.33 in (1955) |
| May 4 | 82.9°F (2016) | 12.9°F (2002) | 0.48 in (1977) |
| May 5 | 87.1°F (2016) | 12.9°F (2002) | 1.20 in (1965) |
| May 6 | 93.0°F (1992) | 24.1°F (1991) | 1.46 in (1965) |
| May 7 | 93.0°F (1992) | 21.9°F (2002) | 0.57 in (1993) |
| May 8 | 91.0°F (1992) | 15.1°F (2014) | 1.10 in (2005) |
| May 9 | 89.1°F (1987) | 12.9°F (2014) | 0.86 in (1986) |
| May 10 | 82.9°F (1994) | 21.9°F (2002) | 0.82 in (1986) |
| May 11 | 87.1°F (1989) | 18.0°F (2020) | 0.82 in (2004) |
| May 12 | 89.1°F (1987) | 10.9°F (2014) | 0.51 in (1976) |
| May 13 | 93.9°F (2001) | 10.9°F (2014) | 0.91 in (2022) |
| May 14 | 88.0°F (2013) | 10.9°F (2014) | 0.99 in (2022) |
| May 15 | 87.1°F (1987) | 10.9°F (2014) | 0.61 in (2023) |
| May 16 | 87.1°F (1997) | 23.0°F (2004) | 0.35 in (1989) |
| May 17 | 91.0°F (2012) | 23.0°F (2002) | 1.96 in (1949) |
| May 18 | 95.0°F (2006) | 18.0°F (2014) | 0.90 in (2005) |
| May 19 | 91.9°F (1992) | 21.0°F (1997) | 0.75 in (1972) |
| May 20 | 91.0°F (1992) | 23.0°F (2003) | 1.11 in (1994) |
| May 21 | 87.1°F (2020) | 28.0°F (2001) | 1.33 in (1972) |
| May 22 | 82.9°F (2018) | 23.0°F (2003) | 0.79 in (1962) |
| May 23 | 88.0°F (2023) | 28.0°F (2001) | 1.40 in (2007) |
| May 24 | 91.0°F (2014) | 26.1°F (2001) | 1.44 in (1960) |
| May 25 | 90.0°F (2014) | 25.0°F (2002) | 1.32 in (1965) |
| May 26 | 86.0°F (2018) | 32.0°F (2002) | 1.02 in (1991) |
| May 27 | 90.0°F (1988) | 28.9°F (2008) | 1.01 in (2012) |
| May 28 | 89.1°F (1999) | 28.9°F (2019) | 0.80 in (1953) |
| May 29 | 97.0°F (1988) | 33.1°F (1997) | 0.71 in (2004) |
| May 30 | 93.0°F (1986) | 33.1°F (2010) | 0.69 in (2001) |
| May 31 | 91.9°F (1995) | 30.0°F (1998) | 1.60 in (2007) |