May weather in Troy, MT
The average temperature in Troy in May is 54.9°F (40.1°F–69.8°F). Average precipitation: 1.79 inches.
May is a spring month in Troy, and is warmer than the annual average of 46.8°F. Daily temperatures swing about 29.7°F between overnight low and afternoon high. Expect about 10 days with precipitation. Daylight averages about 15h 1m. For travel, May is a comfortable month to visit.
Avg High
69.8°F
Avg Low
40.1°F
Precipitation
1.79 in
Daylight
15h 1m
May records in Troy
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 86.0°F (1998) | 21.9°F (1973) | 0.76 in (1987) |
| May 2 | 88.0°F (1998) | 23.0°F (1975) | 0.52 in (1964) |
| May 3 | 88.0°F (1998) | 25.0°F (1965) | 0.53 in (1964) |
| May 4 | 84.0°F (1966) | 25.0°F (2001) | 0.62 in (1961) |
| May 5 | 87.1°F (1966) | 24.1°F (1962) | 0.99 in (1961) |
| May 6 | 90.0°F (1990) | 24.1°F (1977) | 0.35 in (2000) |
| May 7 | 90.0°F (1990) | 25.0°F (1965) | 0.39 in (1962) |
| May 8 | 87.1°F (1994) | 21.9°F (2002) | 0.17 in (1985) |
| May 9 | 88.0°F (1994) | 27.0°F (1979) | 0.29 in (1961) |
| May 10 | 87.1°F (2013) | 25.0°F (1985) | 0.73 in (1978) |
| May 11 | 87.1°F (2013) | 21.9°F (1968) | 0.20 in (1977) |
| May 12 | 87.1°F (2013) | 25.0°F (1985) | 0.39 in (2014) |
| May 13 | 86.0°F (2012) | 25.0°F (1985) | 0.73 in (1986) |
| May 14 | 90.0°F (2012) | 25.0°F (1964) | 0.45 in (1962) |
| May 15 | 90.0°F (2012) | 27.0°F (1964) | 0.98 in (1978) |
| May 16 | 89.1°F (1973) | 27.0°F (1977) | 0.43 in (1961) |
| May 17 | 91.0°F (2006) | 28.9°F (1966) | 0.90 in (2018) |
| May 18 | 90.0°F (2006) | 26.1°F (1976) | 0.34 in (1989) |
| May 19 | 93.0°F (2006) | 26.1°F (1976) | 0.48 in (2005) |
| May 20 | 84.9°F (2006) | 28.9°F (1974) | 0.62 in (1965) |
| May 21 | 84.0°F (1967) | 27.0°F (2010) | 0.95 in (2004) |
| May 22 | 91.0°F (1988) | 28.0°F (2010) | 1.56 in (2013) |
| May 23 | 97.0°F (2001) | 27.0°F (1966) | 1.74 in (2016) |
| May 24 | 97.0°F (2001) | 30.9°F (1995) | 0.52 in (1965) |
| May 25 | 95.0°F (2001) | 24.1°F (1964) | 0.80 in (1980) |
| May 26 | 91.9°F (1966) | 27.0°F (1964) | 0.40 in (1980) |
| May 27 | 91.9°F (2001) | 27.0°F (1975) | 3.34 in (1998) |
| May 28 | 93.9°F (2001) | 32.0°F (1975) | 0.82 in (2007) |
| May 29 | 95.0°F (1986) | 30.0°F (1979) | 0.85 in (1994) |
| May 30 | 95.0°F (1986) | 30.0°F (1962) | 1.41 in (1969) |
| May 31 | 96.1°F (1986) | 28.0°F (2019) | 0.73 in (1961) |