September weather in Fort Laramie, WY
The average temperature in Fort Laramie in September is 61.8°F (43.8°F–79.8°F). Average precipitation: 1.39 inches.
September is a fall month in Fort Laramie, and is warmer than the annual average of 49.1°F. Daily temperatures swing about 36°F between overnight low and afternoon high. Expect about 6 days with precipitation. Daylight averages about 12h 16m. For travel, September is a comfortable month to visit.
Avg High
79.8°F
Avg Low
43.8°F
Precipitation
1.39 in
Daylight
12h 16m
September records in Fort Laramie
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 98.1°F (2023) | 42.1°F (1993) | 1.05 in (1999) |
| September 2 | 100.0°F (2019) | 33.1°F (2006) | 0.36 in (1999) |
| September 3 | 98.1°F (2024) | 30.0°F (2010) | 0.94 in (1999) |
| September 4 | 99.0°F (1998) | 30.0°F (2010) | 0.64 in (2016) |
| September 5 | 102.0°F (1998) | 35.1°F (2010) | 1.45 in (2004) |
| September 6 | 102.0°F (2020) | 30.0°F (2025) | 0.53 in (2004) |
| September 7 | 97.0°F (2013) | 28.0°F (2010) | 0.51 in (2025) |
| September 8 | 93.9°F (2022) | 27.0°F (2010) | 0.75 in (2020) |
| September 9 | 96.1°F (2024) | 27.0°F (2001) | 0.66 in (2003) |
| September 10 | 95.0°F (2017) | 27.0°F (2020) | 0.76 in (2023) |
| September 11 | 95.0°F (1998) | 28.9°F (2016) | 1.00 in (2020) |
| September 12 | 93.9°F (2017) | 32.0°F (2007) | 0.59 in (2013) |
| September 13 | 96.1°F (1990) | 28.0°F (1999) | 1.11 in (2002) |
| September 14 | 91.0°F (2015) | 21.9°F (1993) | 0.20 in (2013) |
| September 15 | 91.0°F (1997) | 28.9°F (2005) | 0.48 in (2001) |
| September 16 | 93.0°F (2018) | 30.9°F (1991) | 0.34 in (2024) |
| September 17 | 97.0°F (2000) | 30.0°F (2006) | 1.30 in (2025) |
| September 18 | 97.0°F (2000) | 28.0°F (1992) | 0.50 in (2022) |
| September 19 | 93.0°F (1998) | 23.0°F (1991) | 0.41 in (1997) |
| September 20 | 89.1°F (2024) | 27.0°F (2006) | 1.07 in (2000) |
| September 21 | 90.0°F (2010) | 28.0°F (2011) | 0.73 in (1998) |
| September 22 | 89.1°F (1991) | 19.9°F (1995) | 0.45 in (2023) |
| September 23 | 90.0°F (2007) | 25.0°F (1995) | 0.80 in (2000) |
| September 24 | 95.0°F (1992) | 25.0°F (1995) | 0.66 in (2017) |
| September 25 | 93.0°F (2024) | 21.0°F (2000) | 0.51 in (2005) |
| September 26 | 96.1°F (2024) | 23.0°F (1996) | 0.24 in (2002) |
| September 27 | 93.9°F (2024) | 24.1°F (1996) | 0.17 in (2019) |
| September 28 | 93.9°F (2024) | 21.9°F (2006) | 0.23 in (2019) |
| September 29 | 93.9°F (2024) | 21.0°F (1999) | 0.52 in (2014) |
| September 30 | 93.9°F (2024) | 23.0°F (1999) | 1.36 in (2014) |