September weather in Valentine, NE
The average temperature in Valentine in September is 64.2°F (50.4°F–78.1°F). Average precipitation: 1.70 inches.
September is a fall month in Valentine, and is warmer than the annual average of 49°F. Daily temperatures swing about 27.7°F between overnight low and afternoon high. Expect about 4 days with precipitation. Daylight averages about 12h 16m. For travel, September is one of the best months of the year to visit.
Avg High
78.1°F
Avg Low
50.4°F
Precipitation
1.70 in
Daylight
12h 16m
September records in Valentine
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 102.0°F (2023) | 36.0°F (2002) | 0.66 in (2008) |
| September 2 | 104.0°F (2023) | 39.9°F (2002) | 2.35 in (2021) |
| September 3 | 102.0°F (2023) | 39.0°F (2008) | 0.45 in (2016) |
| September 4 | 100.9°F (2001) | 39.9°F (2006) | 0.12 in (2015) |
| September 5 | 104.0°F (1998) | 33.1°F (2025) | 0.91 in (2016) |
| September 6 | 105.1°F (2013) | 33.1°F (2025) | 0.00 in (1998) |
| September 7 | 100.0°F (2000) | 39.9°F (2001) | 0.86 in (2001) |
| September 8 | 102.9°F (2022) | 37.0°F (2020) | 0.74 in (2025) |
| September 9 | 93.9°F (2004) | 37.9°F (2012) | 0.42 in (2023) |
| September 10 | 100.0°F (2012) | 33.1°F (2020) | 1.37 in (2023) |
| September 11 | 100.9°F (1998) | 37.0°F (2014) | 0.50 in (2019) |
| September 12 | 97.0°F (2004) | 34.0°F (2014) | 0.77 in (2002) |
| September 13 | 93.0°F (2015) | 36.0°F (2014) | 0.52 in (2025) |
| September 14 | 100.0°F (2015) | 32.0°F (2007) | 0.80 in (2025) |
| September 15 | 93.9°F (2015) | 37.0°F (2014) | 0.95 in (2011) |
| September 16 | 95.0°F (1998) | 39.0°F (2011) | 1.25 in (2025) |
| September 17 | 95.0°F (2000) | 34.0°F (2003) | 0.47 in (2025) |
| September 18 | 95.0°F (2013) | 32.0°F (2003) | 0.82 in (2015) |
| September 19 | 91.9°F (2022) | 30.0°F (2006) | 0.16 in (2013) |
| September 20 | 97.0°F (2010) | 39.0°F (2013) | 0.15 in (2021) |
| September 21 | 90.0°F (2005) | 34.0°F (2002) | 1.60 in (2023) |
| September 22 | 91.0°F (2020) | 30.0°F (2002) | 2.24 in (2025) |
| September 23 | 91.0°F (2007) | 35.1°F (2011) | 3.82 in (2015) |
| September 24 | 87.1°F (2014) | 33.1°F (2001) | 1.27 in (2005) |
| September 25 | 87.1°F (2008) | 27.0°F (2000) | 0.99 in (2005) |
| September 26 | 91.0°F (2024) | 37.0°F (2002) | 0.00 in (1998) |
| September 27 | 91.9°F (2021) | 36.0°F (2017) | 0.58 in (2013) |
| September 28 | 93.0°F (2021) | 33.1°F (2000) | 0.38 in (2013) |
| September 29 | 91.0°F (2024) | 28.0°F (2003) | 0.22 in (2007) |
| September 30 | 90.0°F (2011) | 7.0°F (2000) | 0.50 in (2021) |