September weather in Gallup, NM
The average temperature in Gallup in September is 62.7°F (46.8°F–78.7°F). Average precipitation: 1.22 inches.
September is a fall month in Gallup, and is warmer than the annual average of 50.2°F. Daily temperatures swing about 31.9°F between overnight low and afternoon high. Expect about 7 days with precipitation. Daylight averages about 12h 13m. For travel, September is a comfortable month to visit.
Avg High
78.7°F
Avg Low
46.8°F
Precipitation
1.22 in
Daylight
12h 13m
September records in Gallup
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 91.9°F (2019) | 46.0°F (2010) | 0.41 in (2006) |
| September 2 | 90.0°F (2019) | 43.0°F (2010) | 0.37 in (2011) |
| September 3 | 90.0°F (2019) | 46.0°F (2020) | 0.11 in (2007) |
| September 4 | 93.9°F (2021) | 46.0°F (2024) | 0.35 in (2004) |
| September 5 | 93.9°F (2020) | 41.0°F (2004) | 0.15 in (2005) |
| September 6 | 91.9°F (2020) | 43.0°F (2004) | 1.05 in (2009) |
| September 7 | 91.9°F (2019) | 42.1°F (2004) | 0.05 in (2018) |
| September 8 | 91.0°F (2021) | 46.0°F (2025) | 0.39 in (2010) |
| September 9 | 91.9°F (2021) | 39.9°F (2020) | 0.26 in (2005) |
| September 10 | 91.0°F (2021) | 41.0°F (2010) | 0.26 in (2005) |
| September 11 | 90.0°F (2021) | 37.9°F (2010) | 0.39 in (2012) |
| September 12 | 87.1°F (2015) | 37.9°F (2020) | 0.56 in (2025) |
| September 13 | 88.0°F (2021) | 39.0°F (2020) | 0.49 in (2011) |
| September 14 | 88.0°F (2021) | 42.1°F (2005) | 0.40 in (2011) |
| September 15 | 86.0°F (2007) | 39.0°F (2005) | 0.31 in (2006) |
| September 16 | 87.1°F (2018) | 37.9°F (2016) | 0.36 in (2019) |
| September 17 | 86.0°F (2018) | 37.9°F (2016) | 0.31 in (2009) |
| September 18 | 88.0°F (2018) | 32.0°F (2006) | 0.41 in (2024) |
| September 19 | 88.0°F (2018) | 35.1°F (2006) | 0.15 in (2021) |
| September 20 | 87.1°F (2010) | 39.0°F (2023) | 0.36 in (2018) |
| September 21 | 84.9°F (2014) | 34.0°F (2006) | 0.45 in (2006) |
| September 22 | 84.9°F (2020) | 33.1°F (2004) | 0.43 in (2014) |
| September 23 | 84.0°F (2012) | 34.0°F (2004) | 1.10 in (2010) |
| September 24 | 82.9°F (2003) | 33.1°F (2016) | 0.81 in (2019) |
| September 25 | 84.9°F (2020) | 30.0°F (2017) | 0.01 in (2012) |
| September 26 | 86.0°F (2024) | 32.0°F (2017) | 0.01 in (2004) |
| September 27 | 86.0°F (2024) | 36.0°F (2017) | 0.17 in (2021) |
| September 28 | 88.0°F (2003) | 28.0°F (2013) | 1.12 in (2017) |
| September 29 | 88.0°F (2003) | 30.0°F (2013) | 0.78 in (2021) |
| September 30 | 88.0°F (2003) | 32.0°F (2013) | 0.65 in (2016) |