October weather in Spearfish, SD
The average temperature in Spearfish in October is 46.8°F (35.4°F–58.1°F). Average precipitation: 2.04 inches. Average snowfall is 5.5 inches.
October is a fall month in Spearfish, and is warmer than the annual average of 46.5°F. Daily temperatures swing about 22.7°F between overnight low and afternoon high. Expect about 7 days with precipitation. Daylight averages about 10h 43m. For travel, October is cool.
Avg High
58.1°F
Avg Low
35.4°F
Precipitation
2.04 in
Snow
5.5 in
October records in Spearfish
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| October 1 | 90.0°F (1953) | 25.0°F (1933) | 1.75 in (1977) |
| October 2 | 91.0°F (2011) | 21.9°F (1985) | 1.79 in (1971) |
| October 3 | 90.0°F (2011) | 24.1°F (1950) | 1.22 in (1966) |
| October 4 | 91.0°F (1963) | 15.1°F (1933) | 2.27 in (1995) |
| October 5 | 90.0°F (1949) | 15.1°F (1933) | 2.75 in (2013) |
| October 6 | 84.9°F (1920) | 14.0°F (1952) | 2.37 in (1994) |
| October 7 | 91.0°F (1975) | 15.1°F (1946) | 0.60 in (1949) |
| October 8 | 89.1°F (1934) | 18.0°F (1946) | 2.65 in (1924) |
| October 9 | 91.9°F (1928) | 18.0°F (2009) | 2.30 in (1982) |
| October 10 | 87.1°F (1953) | 14.0°F (1919) | 1.68 in (2008) |
| October 11 | 86.0°F (2015) | 16.0°F (2019) | 1.75 in (2013) |
| October 12 | 84.0°F (1934) | 12.0°F (1919) | 0.67 in (2023) |
| October 13 | 84.9°F (1958) | 14.0°F (1985) | 20.70 in (1893) |
| October 14 | 84.9°F (1958) | 10.0°F (1969) | 1.65 in (1966) |
| October 15 | 95.0°F (1908) | 15.1°F (1992) | 1.00 in (2013) |
| October 16 | 84.0°F (1961) | 15.1°F (1992) | 0.99 in (2025) |
| October 17 | 84.9°F (1927) | 16.0°F (1930) | 0.83 in (1980) |
| October 18 | 82.9°F (1958) | 10.9°F (1905) | 0.63 in (1919) |
| October 19 | 82.9°F (1958) | 7.0°F (1960) | 0.76 in (1983) |
| October 20 | 87.1°F (1935) | 17.1°F (1925) | 1.15 in (1906) |
| October 21 | 82.9°F (1974) | 10.9°F (1906) | 1.35 in (1931) |
| October 22 | 93.9°F (1897) | 15.1°F (1917) | 1.36 in (1914) |
| October 23 | 81.0°F (1963) | 10.0°F (1919) | 0.50 in (1914) |
| October 24 | 79.0°F (1973) | 3.9°F (2020) | 1.30 in (1923) |
| October 25 | 84.0°F (1927) | 5.0°F (2020) | 1.02 in (1954) |
| October 26 | 82.0°F (1922) | -7.1°F (2020) | 1.73 in (1996) |
| October 27 | 89.1°F (1938) | -4.0°F (1925) | 0.70 in (1925) |
| October 28 | 82.0°F (1937) | 9.0°F (1991) | 0.73 in (1991) |
| October 29 | 81.0°F (1968) | -2.0°F (1991) | 1.51 in (1989) |
| October 30 | 81.0°F (1950) | 0.0°F (2019) | 1.06 in (2024) |
| October 31 | 80.1°F (1933) | 6.1°F (1935) | 1.18 in (1928) |