September weather in Moses Lake, WA
The average temperature in Moses Lake in September is 62.8°F (47.0°F–78.7°F). Average precipitation: 0.26 inches.
September is a fall month in Moses Lake, and is warmer than the annual average of 50.9°F. Daily temperatures swing about 31.7°F between overnight low and afternoon high. Expect about 3 days with precipitation. Daylight averages about 12h 19m. For travel, September is a comfortable month to visit.
Avg High
78.7°F
Avg Low
47.0°F
Precipitation
0.26 in
Daylight
12h 19m
September records in Moses Lake
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 98.1°F (1998) | 37.9°F (1999) | 0.04 in (2016) |
| September 2 | 100.0°F (1950) | 39.9°F (1999) | 0.00 in (1949) |
| September 3 | 98.1°F (2006) | 37.9°F (2000) | 0.10 in (2022) |
| September 4 | 100.0°F (2020) | 37.9°F (2015) | 0.58 in (1960) |
| September 5 | 97.0°F (1955) | 43.0°F (2002) | 0.13 in (2009) |
| September 6 | 98.1°F (2024) | 41.0°F (2002) | 0.27 in (2013) |
| September 7 | 100.0°F (2024) | 43.0°F (2002) | 0.04 in (2003) |
| September 8 | 98.1°F (2011) | 39.9°F (2001) | 0.20 in (2019) |
| September 9 | 99.0°F (2011) | 41.0°F (1962) | 0.01 in (2025) |
| September 10 | 100.0°F (2011) | 41.0°F (2003) | 0.52 in (2021) |
| September 11 | 99.0°F (1953) | 39.0°F (2014) | 0.03 in (2004) |
| September 12 | 99.0°F (2013) | 37.0°F (2014) | 0.06 in (1958) |
| September 13 | 96.1°F (2013) | 37.9°F (2018) | 0.33 in (1959) |
| September 14 | 93.9°F (2000) | 37.0°F (2016) | 0.29 in (1959) |
| September 15 | 96.1°F (2013) | 39.0°F (2015) | 0.68 in (1959) |
| September 16 | 91.0°F (1998) | 36.0°F (1965) | 0.09 in (1955) |
| September 17 | 95.0°F (2008) | 32.0°F (1965) | 0.34 in (1954) |
| September 18 | 91.9°F (1952) | 36.0°F (1965) | 0.11 in (1959) |
| September 19 | 89.1°F (2025) | 34.0°F (1957) | 0.36 in (2010) |
| September 20 | 91.0°F (2014) | 36.0°F (2016) | 0.09 in (1959) |
| September 21 | 90.0°F (2014) | 35.1°F (1961) | 0.07 in (2025) |
| September 22 | 89.1°F (1952) | 32.0°F (1961) | 0.02 in (2013) |
| September 23 | 90.0°F (2001) | 27.0°F (2000) | 0.19 in (2020) |
| September 24 | 90.0°F (1952) | 30.0°F (2000) | 0.12 in (2014) |
| September 25 | 93.0°F (1952) | 34.0°F (2000) | 0.16 in (2014) |
| September 26 | 88.0°F (1952) | 35.1°F (1951) | 0.28 in (1959) |
| September 27 | 90.0°F (1963) | 33.1°F (1999) | 0.32 in (1955) |
| September 28 | 91.0°F (1963) | 30.0°F (1999) | 0.39 in (1962) |
| September 29 | 84.9°F (2003) | 33.1°F (2007) | 0.22 in (1951) |
| September 30 | 86.0°F (2008) | 32.0°F (2024) | 0.35 in (2005) |