October weather in Mattawa, WA
The average temperature in Mattawa in October is 55.9°F (46.4°F–65.3°F). Average precipitation: 0.65 inches.
October is a fall month in Mattawa, and is cooler than the annual average of 56°F. Daily temperatures swing about 18.9°F between overnight low and afternoon high. Expect about 7 days with precipitation. Daylight averages about 10h 37m. For travel, October is a comfortable month to visit.
Avg High
65.3°F
Avg Low
46.4°F
Precipitation
0.65 in
Daylight
10h 37m
October records in Mattawa
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| October 1 | 87.1°F (1993) | 36.0°F (1983) | 0.17 in (2005) |
| October 2 | 86.0°F (1975) | 35.1°F (1989) | 0.97 in (1957) |
| October 3 | 84.0°F (1958) | 34.0°F (1989) | 0.25 in (2005) |
| October 4 | 88.0°F (2020) | 30.9°F (1989) | 0.03 in (2006) |
| October 5 | 91.9°F (2001) | 39.0°F (1969) | 0.67 in (2011) |
| October 6 | 91.9°F (2014) | 34.0°F (2009) | 0.25 in (1973) |
| October 7 | 84.9°F (1986) | 33.1°F (1970) | 0.08 in (2015) |
| October 8 | 84.9°F (1965) | 28.9°F (1985) | 0.07 in (2018) |
| October 9 | 82.0°F (1988) | 27.0°F (1985) | 0.11 in (2004) |
| October 10 | 84.0°F (1996) | 32.0°F (2019) | 0.64 in (2016) |
| October 11 | 82.0°F (1988) | 33.1°F (2009) | 0.49 in (1968) |
| October 12 | 79.0°F (1979) | 32.0°F (2009) | 0.54 in (1962) |
| October 13 | 79.0°F (1991) | 32.0°F (1969) | 0.15 in (1996) |
| October 14 | 77.0°F (1961) | 30.9°F (1984) | 0.42 in (2009) |
| October 15 | 80.1°F (1963) | 34.0°F (1981) | 0.27 in (2006) |
| October 16 | 79.0°F (1991) | 33.1°F (1984) | 0.13 in (2011) |
| October 17 | 75.0°F (1963) | 30.0°F (1999) | 0.42 in (2004) |
| October 18 | 73.9°F (1974) | 32.0°F (1969) | 0.25 in (2025) |
| October 19 | 75.9°F (1981) | 30.9°F (1969) | 0.75 in (2025) |
| October 20 | 80.1°F (2024) | 30.9°F (1996) | 0.17 in (1966) |
| October 21 | 75.0°F (1963) | 21.0°F (1984) | 0.38 in (1975) |
| October 22 | 75.9°F (2011) | 30.9°F (1978) | 0.28 in (2012) |
| October 23 | 72.0°F (1960) | 30.0°F (1981) | 0.35 in (1957) |
| October 24 | 73.0°F (1988) | 28.9°F (2002) | 0.28 in (1996) |
| October 25 | 73.0°F (1984) | 28.9°F (2002) | 0.25 in (2025) |
| October 26 | 75.0°F (2019) | 26.1°F (2020) | 0.23 in (2012) |
| October 27 | 75.0°F (1985) | 26.1°F (1970) | 0.45 in (1994) |
| October 28 | 73.9°F (2021) | 27.0°F (1971) | 0.52 in (1982) |
| October 29 | 73.0°F (2012) | 18.0°F (1971) | 0.54 in (1982) |
| October 30 | 73.9°F (2015) | 25.0°F (1995) | 0.31 in (2001) |
| October 31 | 72.0°F (1967) | 18.0°F (1984) | 0.69 in (1973) |