September weather in Lander, WY
The average temperature in Lander in September is °F (°F–°F). Average precipitation: 0.94 inches. Average snowfall is 0.2 inches.
September is a fall month in Lander, and is cooler than the annual average of 0°F. Expect about 6 days with precipitation. Daylight averages about 12h 16m.
Avg High
°F
Avg Low
°F
Precipitation
0.94 in
Snow
0.2 in
September records in Lander
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 93.0°F (2022) | 34.0°F (2006) | 0.11 in (2008) |
| September 2 | 95.0°F (2022) | 33.1°F (2008) | 0.06 in (2008) |
| September 3 | 93.9°F (2001) | 33.1°F (2008) | 0.07 in (1999) |
| September 4 | 95.0°F (2022) | 33.1°F (2008) | 0.27 in (2024) |
| September 5 | 97.0°F (2022) | 33.1°F (2008) | 0.36 in (2023) |
| September 6 | 95.0°F (2022) | 34.0°F (2010) | 0.17 in (2011) |
| September 7 | 93.9°F (2022) | 28.0°F (2000) | 0.30 in (2001) |
| September 8 | 97.0°F (2022) | 30.9°F (1999) | 0.24 in (2013) |
| September 9 | 89.1°F (2022) | 27.0°F (2001) | 0.04 in (2013) |
| September 10 | 88.0°F (2017) | 30.0°F (2007) | 0.26 in (2003) |
| September 11 | 88.0°F (2018) | 28.9°F (2010) | 0.22 in (2012) |
| September 12 | 88.0°F (2017) | 32.0°F (2010) | 0.70 in (2013) |
| September 13 | 88.0°F (2006) | 27.0°F (1999) | 0.65 in (2013) |
| September 14 | 88.0°F (2000) | 27.0°F (2003) | 0.43 in (2001) |
| September 15 | 91.9°F (2000) | 28.0°F (2004) | 0.65 in (2022) |
| September 16 | 93.0°F (2000) | 32.0°F (1999) | 0.40 in (2022) |
| September 17 | 86.0°F (2018) | 27.0°F (2006) | 0.11 in (2001) |
| September 18 | 86.0°F (2018) | 23.0°F (2003) | 0.81 in (2003) |
| September 19 | 90.0°F (2014) | 25.0°F (2003) | 0.54 in (1999) |
| September 20 | 90.0°F (2010) | 32.0°F (2005) | 0.30 in (1999) |
| September 21 | 86.0°F (2001) | 28.9°F (2011) | 0.39 in (2000) |
| September 22 | 84.9°F (2007) | 25.0°F (2000) | 0.41 in (2000) |
| September 23 | 84.0°F (2015) | 26.1°F (2000) | 0.35 in (2016) |
| September 24 | 87.1°F (2001) | 18.0°F (2000) | 0.21 in (2016) |
| September 25 | 88.0°F (2001) | 21.0°F (2000) | 0.57 in (2016) |
| September 26 | 89.1°F (2014) | 25.0°F (2000) | 0.10 in (2012) |
| September 27 | 91.0°F (2001) | 26.1°F (2000) | 1.40 in (2013) |
| September 28 | 86.0°F (2024) | 26.1°F (2013) | 0.48 in (2014) |
| September 29 | 87.1°F (2024) | 19.9°F (1999) | 1.04 in (2014) |
| September 30 | 88.0°F (2024) | 30.0°F (2018) | 0.53 in (2004) |