October weather in Chinook, MT
The average temperature in Chinook in October is 42.7°F (28.5°F–56.9°F). Average precipitation: 0.88 inches.
October is a fall month in Chinook, and is warmer than the annual average of 42.4°F. Daily temperatures swing about 28.4°F between overnight low and afternoon high. Expect about 6 days with precipitation. Daylight averages about 10h 32m. For travel, October is cool.
Avg High
56.9°F
Avg Low
28.5°F
Precipitation
0.88 in
Daylight
10h 32m
October records in Chinook
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| October 1 | 90.0°F (1992) | 5.0°F (1909) | 0.35 in (1919) |
| October 2 | 88.0°F (1943) | 18.0°F (2004) | 0.67 in (1973) |
| October 3 | 88.0°F (1917) | 12.0°F (1999) | 1.00 in (2017) |
| October 4 | 88.0°F (1947) | 14.0°F (1999) | 1.30 in (2016) |
| October 5 | 89.1°F (1905) | 3.9°F (1916) | 1.15 in (2016) |
| October 6 | 87.1°F (2021) | 10.9°F (1952) | 0.47 in (1959) |
| October 7 | 88.0°F (1980) | 14.0°F (2000) | 0.60 in (1959) |
| October 8 | 87.1°F (1910) | 12.0°F (1932) | 0.60 in (2016) |
| October 9 | 86.0°F (1942) | -0.9°F (1985) | 0.58 in (1912) |
| October 10 | 87.1°F (1934) | 15.1°F (1919) | 0.41 in (1969) |
| October 11 | 88.0°F (1991) | 12.0°F (1959) | 0.42 in (1995) |
| October 12 | 84.0°F (1991) | 5.0°F (1909) | 1.01 in (1981) |
| October 13 | 84.9°F (1964) | 9.0°F (2016) | 0.43 in (1975) |
| October 14 | 84.9°F (1964) | 8.1°F (2016) | 0.20 in (1935) |
| October 15 | 87.1°F (1910) | 10.9°F (1930) | 0.72 in (1962) |
| October 16 | 86.0°F (1961) | 8.1°F (1930) | 0.51 in (1995) |
| October 17 | 84.9°F (1927) | 9.0°F (1930) | 0.98 in (1918) |
| October 18 | 86.0°F (1927) | 3.9°F (1905) | 0.67 in (1920) |
| October 19 | 82.9°F (2003) | -8.0°F (1905) | 0.38 in (1979) |
| October 20 | 81.0°F (2003) | 1.9°F (1905) | 0.96 in (1958) |
| October 21 | 81.0°F (1927) | 6.1°F (1905) | 0.59 in (1995) |
| October 22 | 82.9°F (2003) | 8.1°F (1905) | 1.10 in (1980) |
| October 23 | 81.0°F (1915) | -7.1°F (2020) | 0.70 in (2022) |
| October 24 | 79.0°F (1992) | -7.1°F (2020) | 0.26 in (1911) |
| October 25 | 82.0°F (1990) | -9.0°F (1919) | 0.28 in (1934) |
| October 26 | 78.1°F (1966) | -9.9°F (2020) | 0.43 in (1984) |
| October 27 | 77.0°F (1937) | -9.9°F (2020) | 0.91 in (1991) |
| October 28 | 82.0°F (1937) | -11.0°F (1925) | 0.32 in (2009) |
| October 29 | 81.0°F (1921) | -24.0°F (1991) | 0.54 in (2003) |
| October 30 | 78.1°F (1915) | -20.0°F (1991) | 0.40 in (1943) |
| October 31 | 78.1°F (1915) | -2.0°F (1984) | 0.80 in (1945) |