October weather in Sammamish, WA
The average temperature in Sammamish in October is 51.5°F (43.5°F–59.5°F). Average precipitation: 6.22 inches.
October is a fall month in Sammamish, and is cooler than the annual average of 51.7°F. Daily temperatures swing about 16°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
43.5°F
Precipitation
6.22 in
Daylight
10h 35m
October records in Sammamish
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| October 1 | 95.0°F (1987) | 27.0°F (1901) | 1.76 in (1910) |
| October 2 | 80.1°F (1902) | 28.0°F (1901) | 1.09 in (1957) |
| October 3 | 84.0°F (1979) | 30.0°F (1916) | 2.24 in (1927) |
| October 4 | 82.9°F (1899) | 28.9°F (1916) | 1.59 in (1920) |
| October 5 | 91.9°F (1980) | 30.0°F (1974) | 2.19 in (1981) |
| October 6 | 81.0°F (1991) | 30.0°F (1901) | 1.68 in (1930) |
| October 7 | 81.0°F (1998) | 30.0°F (1985) | 1.25 in (1910) |
| October 8 | 82.0°F (1951) | 28.9°F (1931) | 1.14 in (1999) |
| October 9 | 81.0°F (1906) | 30.9°F (1916) | 1.74 in (1955) |
| October 10 | 84.0°F (1936) | 30.0°F (1930) | 1.47 in (1940) |
| October 11 | 78.1°F (1987) | 28.0°F (1930) | 1.95 in (2015) |
| October 12 | 84.0°F (1931) | 28.0°F (1925) | 1.06 in (1984) |
| October 13 | 78.1°F (1931) | 28.0°F (1925) | 1.13 in (1971) |
| October 14 | 84.9°F (1961) | 28.0°F (1952) | 1.66 in (1947) |
| October 15 | 78.1°F (1961) | 27.0°F (1984) | 1.76 in (1988) |
| October 16 | 79.0°F (1991) | 27.0°F (1946) | 2.19 in (1926) |
| October 17 | 73.9°F (1942) | 28.0°F (1938) | 1.36 in (1975) |
| October 18 | 77.0°F (1940) | 27.0°F (1905) | 1.72 in (1947) |
| October 19 | 75.0°F (1964) | 24.1°F (1949) | 1.80 in (2017) |
| October 20 | 75.9°F (1938) | 23.0°F (1949) | 1.63 in (1946) |
| October 21 | 72.0°F (1901) | 26.1°F (1928) | 2.20 in (2003) |
| October 22 | 79.0°F (1937) | 25.0°F (1935) | 1.97 in (1963) |
| October 23 | 77.0°F (1929) | 28.0°F (1953) | 1.96 in (1961) |
| October 24 | 80.1°F (2007) | 27.0°F (1916) | 1.94 in (1934) |
| October 25 | 73.0°F (1904) | 25.0°F (1939) | 2.50 in (1934) |
| October 26 | 72.0°F (1914) | 27.0°F (1954) | 1.36 in (1986) |
| October 27 | 78.1°F (1944) | 25.0°F (1948) | 2.02 in (1994) |
| October 28 | 75.9°F (1944) | 24.1°F (1971) | 1.75 in (1935) |
| October 29 | 72.0°F (1926) | 27.0°F (1935) | 3.76 in (2021) |
| October 30 | 72.0°F (1958) | 25.0°F (1935) | 1.80 in (1997) |
| October 31 | 73.0°F (1981) | 16.0°F (2000) | 3.62 in (1942) |