September weather in Ryegate, MT
The average temperature in Ryegate in September is 58.9°F (42.1°F–75.6°F). Average precipitation: inches.
September is a fall month in Ryegate, and is warmer than the annual average of 46.2°F. Daily temperatures swing about 33.5°F between overnight low and afternoon high. Daylight averages about 12h 19m. For travel, September is a comfortable month to visit.
Avg High
75.6°F
Avg Low
42.1°F
Precipitation
in
Daylight
12h 19m
September records in Ryegate
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 96.1°F (2001) | 25.0°F (2020) | 1.00 in (1909) |
| September 2 | 93.9°F (2017) | 33.1°F (2006) | 0.28 in (2004) |
| September 3 | 99.0°F (2022) | 33.1°F (2006) | 2.13 in (1911) |
| September 4 | 96.1°F (2001) | 32.0°F (2011) | 0.83 in (1912) |
| September 5 | 100.0°F (2020) | 34.0°F (2015) | 1.45 in (2016) |
| September 6 | 99.0°F (2020) | 34.0°F (2025) | 0.55 in (2002) |
| September 7 | 102.0°F (2022) | 30.9°F (1910) | 0.76 in (1910) |
| September 8 | 93.9°F (2022) | 30.0°F (2020) | 0.34 in (2013) |
| September 9 | 93.0°F (2017) | 26.1°F (2020) | 0.73 in (2008) |
| September 10 | 88.0°F (2012) | 30.0°F (1915) | 0.85 in (1915) |
| September 11 | 93.9°F (2002) | 28.0°F (1910) | 0.60 in (1910) |
| September 12 | 91.0°F (2017) | 25.0°F (2014) | 0.78 in (1909) |
| September 13 | 89.1°F (2006) | 28.9°F (2003) | 0.34 in (2017) |
| September 14 | 90.0°F (2002) | 28.0°F (1914) | 0.20 in (1912) |
| September 15 | 96.1°F (2000) | 32.0°F (1915) | 2.00 in (2017) |
| September 16 | 98.1°F (2000) | 24.1°F (1912) | 0.00 in (1909) |
| September 17 | 91.9°F (2000) | 28.0°F (1912) | 0.70 in (2006) |
| September 18 | 89.1°F (2021) | 30.0°F (1911) | 2.10 in (2024) |
| September 19 | 90.0°F (2009) | 25.0°F (1911) | 0.52 in (2000) |
| September 20 | 84.0°F (2005) | 25.0°F (1913) | 1.15 in (2019) |
| September 21 | 86.0°F (2013) | 27.0°F (2002) | 1.05 in (2019) |
| September 22 | 88.0°F (2002) | 25.0°F (2000) | 0.50 in (1910) |
| September 23 | 88.0°F (2011) | 21.9°F (2000) | 0.52 in (2005) |
| September 24 | 91.9°F (2001) | 23.0°F (1913) | 0.75 in (1910) |
| September 25 | 93.0°F (2015) | 19.0°F (1913) | 0.75 in (1910) |
| September 26 | 93.0°F (2010) | 26.1°F (1910) | 1.15 in (2013) |
| September 27 | 88.0°F (2015) | 28.9°F (1913) | 0.22 in (1915) |
| September 28 | 91.0°F (2010) | 25.0°F (2009) | 0.41 in (2014) |
| September 29 | 91.9°F (2024) | 19.9°F (1912) | 0.75 in (2019) |
| September 30 | 90.0°F (2011) | 24.1°F (1912) | 1.20 in (2022) |