September weather in Melstone, MT
The average temperature in Melstone in September is 60.8°F (46.0°F–75.5°F). Average precipitation: 1.18 inches.
September is a fall month in Melstone, and is warmer than the annual average of 47.2°F. Daily temperatures swing about 29.5°F between overnight low and afternoon high. Expect about 6 days with precipitation. Daylight averages about 12h 19m. For travel, September is a comfortable month to visit.
Avg High
75.5°F
Avg Low
46.0°F
Precipitation
1.18 in
Snow
0.1 in
September records in Melstone
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 102.9°F (1983) | 35.1°F (1914) | 1.00 in (1973) |
| September 2 | 102.0°F (1940) | 35.1°F (1974) | 0.44 in (1961) |
| September 3 | 102.0°F (1950) | 32.0°F (1961) | 0.76 in (1963) |
| September 4 | 106.0°F (1950) | 28.9°F (1962) | 0.20 in (1968) |
| September 5 | 100.0°F (2020) | 28.0°F (1929) | 0.85 in (1949) |
| September 6 | 99.0°F (1931) | 26.1°F (1929) | 0.65 in (1977) |
| September 7 | 104.0°F (2022) | 28.0°F (1929) | 2.81 in (1941) |
| September 8 | 98.1°F (1979) | 25.0°F (1929) | 0.73 in (1977) |
| September 9 | 98.1°F (2005) | 25.0°F (1962) | 0.90 in (1921) |
| September 10 | 95.0°F (1966) | 25.0°F (1921) | 1.61 in (1961) |
| September 11 | 99.0°F (1959) | 23.0°F (1989) | 0.85 in (1991) |
| September 12 | 96.1°F (1990) | 25.0°F (1989) | 2.60 in (1978) |
| September 13 | 96.1°F (1948) | 28.9°F (1949) | 0.54 in (1978) |
| September 14 | 100.9°F (1948) | 28.0°F (1970) | 1.75 in (2017) |
| September 15 | 97.0°F (1948) | 27.0°F (1943) | 1.05 in (1996) |
| September 16 | 95.0°F (1920) | 25.0°F (1943) | 0.82 in (1947) |
| September 17 | 97.0°F (1920) | 21.0°F (1965) | 0.52 in (1977) |
| September 18 | 95.0°F (1920) | 25.0°F (1965) | 2.07 in (1978) |
| September 19 | 97.0°F (2009) | 21.0°F (1943) | 0.85 in (1983) |
| September 20 | 97.0°F (2009) | 21.0°F (1983) | 0.95 in (1970) |
| September 21 | 96.1°F (1936) | 19.9°F (1995) | 1.60 in (2023) |
| September 22 | 99.0°F (1936) | 26.1°F (1993) | 0.82 in (1910) |
| September 23 | 95.0°F (1992) | 23.0°F (1934) | 0.78 in (1941) |
| September 24 | 97.0°F (2015) | 21.9°F (1934) | 0.80 in (1910) |
| September 25 | 95.0°F (2015) | 21.0°F (1934) | 1.78 in (1986) |
| September 26 | 93.9°F (2011) | 19.9°F (1930) | 1.10 in (1929) |
| September 27 | 93.9°F (1909) | 19.9°F (1935) | 0.63 in (1982) |
| September 28 | 95.0°F (1909) | 21.9°F (1984) | 0.55 in (2019) |
| September 29 | 95.0°F (2024) | 18.0°F (1985) | 0.63 in (1981) |
| September 30 | 95.0°F (1963) | 25.0°F (1958) | 0.96 in (1977) |