October weather in Black Diamond, WA
The average temperature in Black Diamond in October is 50.3°F (41.2°F–59.5°F). Average precipitation: 5.76 inches.
October is a fall month in Black Diamond, and is cooler than the annual average of 50.5°F. Daily temperatures swing about 18.3°F between overnight low and afternoon high. Expect about 17 days with precipitation. Daylight averages about 10h 35m. For travel, October is a wet month.
Avg High
59.5°F
Avg Low
41.2°F
Precipitation
5.76 in
Daylight
10h 35m
October records in Black Diamond
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| October 1 | 84.0°F (1923) | 30.0°F (1921) | 1.55 in (1910) |
| October 2 | 82.9°F (2022) | 28.9°F (1954) | 1.15 in (1915) |
| October 3 | 84.0°F (2022) | 26.1°F (1916) | 2.32 in (1927) |
| October 4 | 80.1°F (1952) | 26.1°F (1916) | 1.24 in (1920) |
| October 5 | 84.0°F (1980) | 28.9°F (1925) | 0.96 in (1981) |
| October 6 | 82.9°F (1952) | 28.9°F (1974) | 2.30 in (1981) |
| October 7 | 86.0°F (2023) | 30.9°F (1916) | 1.20 in (1910) |
| October 8 | 84.0°F (1951) | 28.0°F (1985) | 1.54 in (1999) |
| October 9 | 82.9°F (1934) | 28.9°F (1960) | 1.62 in (1955) |
| October 10 | 84.0°F (1936) | 28.0°F (1960) | 1.76 in (1950) |
| October 11 | 75.9°F (1964) | 28.0°F (1930) | 1.75 in (1918) |
| October 12 | 73.0°F (1980) | 27.0°F (1925) | 0.83 in (1968) |
| October 13 | 78.1°F (1929) | 27.0°F (1925) | 1.85 in (2016) |
| October 14 | 84.0°F (1961) | 26.1°F (1969) | 1.08 in (2016) |
| October 15 | 84.9°F (2022) | 28.0°F (1925) | 1.28 in (1928) |
| October 16 | 88.0°F (2022) | 21.9°F (1938) | 1.84 in (1988) |
| October 17 | 75.0°F (1940) | 23.0°F (1938) | 1.27 in (1947) |
| October 18 | 73.0°F (2015) | 27.0°F (1938) | 0.84 in (2017) |
| October 19 | 75.9°F (1938) | 26.1°F (1949) | 1.78 in (2017) |
| October 20 | 80.1°F (1938) | 25.0°F (1949) | 5.50 in (2003) |
| October 21 | 73.9°F (1937) | 25.0°F (1928) | 2.02 in (2017) |
| October 22 | 80.1°F (1937) | 25.0°F (1916) | 1.58 in (1931) |
| October 23 | 80.1°F (1929) | 26.1°F (1916) | 1.57 in (1960) |
| October 24 | 73.9°F (1965) | 25.0°F (1916) | 2.07 in (1985) |
| October 25 | 71.1°F (1958) | 24.1°F (1919) | 2.58 in (1934) |
| October 26 | 71.1°F (1944) | 26.1°F (1954) | 2.01 in (1986) |
| October 27 | 75.0°F (1944) | 25.0°F (1919) | 1.34 in (2012) |
| October 28 | 70.0°F (1962) | 23.0°F (1971) | 2.00 in (2021) |
| October 29 | 71.1°F (1958) | 25.0°F (1971) | 1.37 in (1975) |
| October 30 | 71.1°F (1958) | 17.1°F (2006) | 1.38 in (1983) |
| October 31 | 70.0°F (1949) | 23.0°F (1996) | 2.96 in (1942) |