September weather in Montague, CA
The average temperature in Montague in September is 64.9°F (45.4°F–84.4°F). Average precipitation: 0.27 inches.
September is a fall month in Montague, and is warmer than the annual average of 52.8°F. Daily temperatures swing about 39°F between overnight low and afternoon high. Expect about 2 days with precipitation. Daylight averages about 12h 16m. For travel, September is a comfortable month to visit.
Avg High
84.4°F
Avg Low
45.4°F
Precipitation
0.27 in
Daylight
12h 16m
September records in Montague
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 102.9°F (1950) | 37.9°F (2008) | 0.31 in (2023) |
| September 2 | 104.0°F (1950) | 37.9°F (2008) | 0.00 in (1948) |
| September 3 | 105.1°F (2020) | 39.0°F (2008) | 0.00 in (1948) |
| September 4 | 100.9°F (2017) | 39.9°F (2016) | 0.00 in (1948) |
| September 5 | 102.0°F (2024) | 35.1°F (2015) | 0.02 in (2013) |
| September 6 | 106.0°F (2022) | 37.0°F (2002) | 0.03 in (2002) |
| September 7 | 102.0°F (2020) | 36.0°F (2002) | 0.06 in (2017) |
| September 8 | 98.1°F (2022) | 35.1°F (2002) | 0.15 in (1949) |
| September 9 | 98.1°F (2011) | 39.0°F (2001) | 0.13 in (2003) |
| September 10 | 100.0°F (2022) | 37.9°F (2010) | 0.28 in (2021) |
| September 11 | 98.1°F (2009) | 36.0°F (2005) | 0.00 in (1948) |
| September 12 | 99.0°F (2015) | 37.0°F (2005) | 0.01 in (2018) |
| September 13 | 96.1°F (2002) | 37.9°F (2005) | 0.18 in (1950) |
| September 14 | 95.0°F (1951) | 37.9°F (2016) | 0.06 in (1950) |
| September 15 | 97.0°F (2008) | 37.9°F (2017) | 0.18 in (1950) |
| September 16 | 93.0°F (2008) | 35.1°F (2006) | 0.10 in (1948) |
| September 17 | 93.9°F (2023) | 34.0°F (1949) | 0.74 in (1948) |
| September 18 | 96.1°F (1951) | 34.0°F (2003) | 0.07 in (2019) |
| September 19 | 93.0°F (1951) | 34.0°F (2013) | 0.22 in (2022) |
| September 20 | 95.0°F (2014) | 32.0°F (2006) | 0.01 in (2017) |
| September 21 | 93.9°F (1949) | 30.0°F (2004) | 0.07 in (2016) |
| September 22 | 95.0°F (1949) | 29.1°F (2017) | 0.12 in (1948) |
| September 23 | 98.1°F (2009) | 33.1°F (2017) | 0.13 in (2005) |
| September 24 | 95.0°F (2003) | 30.2°F (2007) | 1.00 in (2014) |
| September 25 | 95.0°F (2003) | 33.1°F (2007) | 0.37 in (2014) |
| September 26 | 97.0°F (2009) | 32.0°F (1948) | 0.06 in (2023) |
| September 27 | 96.1°F (2003) | 29.1°F (2013) | 0.06 in (1949) |
| September 28 | 93.0°F (2003) | 36.0°F (2004) | 0.20 in (2007) |
| September 29 | 91.9°F (2020) | 28.2°F (2007) | 0.24 in (2013) |
| September 30 | 93.0°F (2010) | 27.0°F (1950) | 0.27 in (2013) |