September weather in Yakima, WA
The average temperature in Yakima in September is 65.4°F (51.4°F–79.4°F). Average precipitation: 0.33 inches.
September is a fall month in Yakima, and is warmer than the annual average of 52.9°F. Daily temperatures swing about 28°F between overnight low and afternoon high. Daylight averages about 12h 19m. For travel, September is one of the best months of the year to visit.
Avg High
79.4°F
Avg Low
51.4°F
Precipitation
0.33 in
Daylight
12h 19m
September records in Yakima
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 97.0°F (1998) | 42.1°F (2000) | 0.00 in (1998) |
| September 2 | 99.0°F (1998) | 41.0°F (2008) | 0.00 in (1998) |
| September 3 | 96.1°F (1998) | 41.0°F (2000) | 0.00 in (1998) |
| September 4 | 97.0°F (2003) | 44.1°F (2002) | 0.06 in (2007) |
| September 5 | 96.1°F (2006) | 46.9°F (2005) | 0.00 in (1998) |
| September 6 | 96.1°F (1998) | 46.9°F (2002) | 0.00 in (1998) |
| September 7 | 91.0°F (2006) | 43.0°F (2002) | 0.00 in (1998) |
| September 8 | 89.1°F (2005) | 39.0°F (2000) | 0.08 in (2003) |
| September 9 | 87.1°F (2008) | 44.1°F (2000) | 0.00 in (1998) |
| September 10 | 88.0°F (2001) | 43.0°F (2008) | 0.11 in (2005) |
| September 11 | 90.0°F (2002) | 42.1°F (2008) | 0.00 in (1998) |
| September 12 | 91.9°F (2002) | 39.9°F (1999) | 0.02 in (2004) |
| September 13 | 91.0°F (2001) | 45.0°F (2004) | 0.10 in (2004) |
| September 14 | 91.9°F (2000) | 41.0°F (2006) | 0.08 in (2006) |
| September 15 | 91.9°F (1998) | 39.9°F (2008) | 0.44 in (2006) |
| September 16 | 91.9°F (1998) | 39.9°F (2006) | 0.04 in (1998) |
| September 17 | 91.0°F (2008) | 42.1°F (2003) | 0.05 in (2002) |
| September 18 | 89.1°F (1999) | 43.0°F (2002) | 0.03 in (2017) |
| September 19 | 88.0°F (1999) | 37.9°F (2004) | 0.01 in (2006) |
| September 20 | 88.0°F (1999) | 43.0°F (2007) | 0.17 in (2008) |
| September 21 | 87.1°F (1999) | 43.0°F (2004) | 0.09 in (2000) |
| September 22 | 89.1°F (1999) | 37.9°F (2000) | 0.08 in (2017) |
| September 23 | 87.1°F (2001) | 33.1°F (2000) | 0.00 in (1998) |
| September 24 | 88.0°F (2001) | 33.1°F (2000) | 0.00 in (1998) |
| September 25 | 89.1°F (2003) | 41.0°F (2000) | 0.00 in (1998) |
| September 26 | 89.1°F (2003) | 39.0°F (1999) | 0.14 in (2001) |
| September 27 | 88.0°F (2003) | 36.0°F (1999) | 0.01 in (2002) |
| September 28 | 88.0°F (2003) | 34.0°F (1999) | 0.05 in (2007) |
| September 29 | 84.9°F (2006) | 35.1°F (2007) | 0.00 in (1998) |
| September 30 | 84.9°F (2008) | 41.0°F (2002) | 0.25 in (2005) |