September weather in Nooksack, WA
The average temperature in Nooksack in September is 58.7°F (46.5°F–71.0°F). Average precipitation: 2.93 inches.
September is a fall month in Nooksack, and is warmer than the annual average of 50.3°F. Daily temperatures swing about 24.5°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 12h 20m. For travel, September is a comfortable month to visit.
Avg High
71.0°F
Avg Low
46.5°F
Precipitation
2.93 in
Daylight
12h 20m
September records in Nooksack
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 88.0°F (1987) | 35.1°F (1924) | 2.67 in (1936) |
| September 2 | 95.0°F (1988) | 33.1°F (1932) | 1.60 in (1913) |
| September 3 | 95.0°F (1988) | 33.1°F (1912) | 1.30 in (1945) |
| September 4 | 96.1°F (2017) | 32.0°F (1912) | 1.60 in (1913) |
| September 5 | 93.0°F (1944) | 33.1°F (1915) | 1.60 in (1927) |
| September 6 | 89.1°F (2024) | 36.0°F (1905) | 1.69 in (1931) |
| September 7 | 89.1°F (1923) | 34.0°F (1915) | 1.70 in (1906) |
| September 8 | 89.1°F (1907) | 27.0°F (1928) | 0.98 in (1979) |
| September 9 | 91.9°F (1940) | 28.9°F (1928) | 0.99 in (2000) |
| September 10 | 93.0°F (1944) | 30.9°F (1928) | 1.15 in (1994) |
| September 11 | 91.9°F (2013) | 33.1°F (1906) | 2.00 in (1920) |
| September 12 | 89.1°F (1918) | 28.9°F (1907) | 1.78 in (1919) |
| September 13 | 87.1°F (1912) | 28.9°F (1907) | 1.73 in (1935) |
| September 14 | 93.9°F (1938) | 30.0°F (1921) | 1.85 in (1935) |
| September 15 | 90.0°F (1951) | 30.9°F (1921) | 1.73 in (1996) |
| September 16 | 93.0°F (1929) | 30.0°F (1908) | 1.47 in (1958) |
| September 17 | 88.0°F (1928) | 30.0°F (1908) | 1.90 in (1997) |
| September 18 | 88.0°F (1915) | 28.9°F (1908) | 1.65 in (2021) |
| September 19 | 87.1°F (1910) | 28.9°F (1947) | 1.04 in (1932) |
| September 20 | 87.1°F (1974) | 27.0°F (1926) | 1.30 in (1923) |
| September 21 | 86.0°F (1974) | 30.0°F (1925) | 1.04 in (1972) |
| September 22 | 87.1°F (1928) | 30.0°F (1961) | 1.62 in (1969) |
| September 23 | 88.0°F (1940) | 30.0°F (1923) | 2.12 in (1903) |
| September 24 | 87.1°F (1919) | 21.9°F (1908) | 1.78 in (1903) |
| September 25 | 82.9°F (1942) | 19.9°F (1908) | 1.12 in (2023) |
| September 26 | 88.0°F (1918) | 25.0°F (1926) | 1.01 in (2014) |
| September 27 | 91.9°F (1918) | 28.0°F (1915) | 1.73 in (1930) |
| September 28 | 89.1°F (1918) | 27.0°F (1929) | 2.61 in (1971) |
| September 29 | 84.9°F (1935) | 27.0°F (1919) | 2.51 in (2005) |
| September 30 | 81.0°F (1987) | 27.0°F (1917) | 2.54 in (2007) |