October weather in Roundup, MT
The average temperature in Roundup in October is 46.3°F (31.7°F–60.9°F). Average precipitation: 1.22 inches. Average snowfall is 1.0 inches.
October is a fall month in Roundup, and is cooler than the annual average of 46.5°F. Daily temperatures swing about 29.2°F between overnight low and afternoon high. Expect about 7 days with precipitation. Daylight averages about 10h 38m. For travel, October is cool.
Avg High
60.9°F
Avg Low
31.7°F
Precipitation
1.22 in
Snow
1.0 in
October records in Roundup
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| October 1 | 93.0°F (2011) | 15.1°F (1950) | 1.19 in (1971) |
| October 2 | 91.9°F (2011) | 23.0°F (1950) | 0.80 in (1939) |
| October 3 | 95.0°F (1943) | 21.0°F (1968) | 0.85 in (1940) |
| October 4 | 93.0°F (1943) | 23.0°F (1916) | 1.46 in (2016) |
| October 5 | 90.0°F (1920) | 21.0°F (2001) | 0.70 in (1946) |
| October 6 | 87.1°F (1975) | 9.0°F (1952) | 1.17 in (2007) |
| October 7 | 90.0°F (1980) | 16.0°F (2000) | 0.90 in (1932) |
| October 8 | 91.0°F (1943) | 19.9°F (1974) | 0.64 in (1993) |
| October 9 | 89.1°F (1942) | 12.9°F (1993) | 0.64 in (1938) |
| October 10 | 89.1°F (2015) | 8.1°F (1919) | 0.45 in (2008) |
| October 11 | 88.0°F (1942) | 16.0°F (2009) | 0.55 in (1930) |
| October 12 | 84.9°F (1934) | 15.1°F (2009) | 0.51 in (1970) |
| October 13 | 84.9°F (1953) | 16.0°F (2016) | 0.23 in (1942) |
| October 14 | 84.9°F (1958) | 16.0°F (1974) | 0.93 in (1973) |
| October 15 | 84.9°F (1961) | 18.0°F (1976) | 1.00 in (1992) |
| October 16 | 84.9°F (1974) | 12.9°F (1976) | 0.68 in (2006) |
| October 17 | 84.0°F (1974) | 10.9°F (1930) | 0.74 in (1938) |
| October 18 | 84.9°F (1958) | 12.9°F (1917) | 0.40 in (1916) |
| October 19 | 82.9°F (1947) | 16.0°F (1930) | 0.56 in (1957) |
| October 20 | 82.0°F (1940) | 16.0°F (1976) | 0.44 in (2015) |
| October 21 | 86.0°F (2003) | 15.1°F (1981) | 0.90 in (1975) |
| October 22 | 84.9°F (1921) | 12.0°F (1917) | 3.00 in (1975) |
| October 23 | 82.0°F (1948) | 12.0°F (1919) | 0.56 in (1919) |
| October 24 | 80.1°F (1948) | -2.0°F (1919) | 0.50 in (1945) |
| October 25 | 79.0°F (1977) | -9.9°F (1919) | 0.50 in (1946) |
| October 26 | 79.0°F (1960) | 0.0°F (1919) | 0.51 in (1972) |
| October 27 | 80.1°F (1983) | -6.0°F (1919) | 0.66 in (1940) |
| October 28 | 82.0°F (1937) | 10.0°F (1971) | 1.00 in (1994) |
| October 29 | 82.0°F (1968) | -2.9°F (1917) | 0.47 in (2004) |
| October 30 | 78.1°F (1950) | -7.1°F (1991) | 0.48 in (1919) |
| October 31 | 73.0°F (1999) | 1.9°F (1935) | 1.05 in (1974) |