September weather in Lamont, WA
The average temperature in Lamont in September is 60.3°F (46.7°F–73.9°F). Average precipitation: 0.56 inches.
September is a fall month in Lamont, and is warmer than the annual average of 49.3°F. Daily temperatures swing about 27.2°F between overnight low and afternoon high. Expect about 4 days with precipitation. Daylight averages about 12h 19m. For travel, September is a comfortable month to visit.
Avg High
73.9°F
Avg Low
46.7°F
Precipitation
0.56 in
Daylight
12h 19m
September records in Lamont
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 96.1°F (1967) | 30.9°F (1985) | 0.19 in (1971) |
| September 2 | 98.1°F (1988) | 33.1°F (1973) | 0.60 in (1971) |
| September 3 | 100.9°F (1988) | 30.0°F (1980) | 0.23 in (1970) |
| September 4 | 99.0°F (1988) | 28.0°F (1980) | 0.36 in (2013) |
| September 5 | 95.0°F (1998) | 30.9°F (1980) | 0.70 in (2013) |
| September 6 | 95.0°F (1998) | 32.0°F (1969) | 0.30 in (1978) |
| September 7 | 93.9°F (1990) | 25.0°F (1985) | 0.35 in (1995) |
| September 8 | 95.0°F (1981) | 27.0°F (1976) | 0.46 in (2003) |
| September 9 | 95.0°F (2011) | 32.0°F (1964) | 0.35 in (1982) |
| September 10 | 97.0°F (1973) | 32.0°F (1989) | 0.75 in (2000) |
| September 11 | 97.0°F (1996) | 28.9°F (1974) | 0.25 in (1967) |
| September 12 | 96.1°F (1996) | 30.0°F (2012) | 0.30 in (1982) |
| September 13 | 91.0°F (2013) | 27.0°F (1974) | 0.42 in (1980) |
| September 14 | 95.0°F (2000) | 21.0°F (1970) | 0.19 in (1996) |
| September 15 | 95.0°F (2000) | 21.9°F (1970) | 1.37 in (1985) |
| September 16 | 97.0°F (1981) | 28.9°F (1970) | 0.28 in (1985) |
| September 17 | 100.9°F (1981) | 18.0°F (1965) | 0.47 in (1964) |
| September 18 | 100.0°F (1981) | 23.0°F (1965) | 1.25 in (1968) |
| September 19 | 91.9°F (2008) | 26.1°F (1985) | 0.53 in (2010) |
| September 20 | 90.0°F (1979) | 24.1°F (1983) | 0.56 in (1984) |
| September 21 | 91.9°F (1966) | 27.0°F (1983) | 0.53 in (1968) |
| September 22 | 98.1°F (1966) | 21.0°F (1985) | 0.15 in (1984) |
| September 23 | 95.0°F (1966) | 18.0°F (1985) | 0.71 in (1984) |
| September 24 | 95.0°F (2011) | 21.9°F (1970) | 0.37 in (1992) |
| September 25 | 95.0°F (2011) | 19.9°F (1981) | 0.25 in (1998) |
| September 26 | 93.0°F (1963) | 26.1°F (1985) | 0.07 in (1984) |
| September 27 | 96.1°F (1963) | 25.0°F (1972) | 0.40 in (1988) |
| September 28 | 97.0°F (1963) | 17.1°F (1983) | 0.36 in (2013) |
| September 29 | 95.0°F (1963) | 15.1°F (1985) | 0.33 in (2013) |
| September 30 | 90.0°F (1992) | 14.0°F (1985) | 0.98 in (2005) |