August weather in Pasco, WA
The average temperature in Pasco in August is 73.2°F (55.7°F–90.7°F). Average precipitation: 0.27 inches.
August is a summer month in Pasco, and is warmer than the annual average of 53.3°F. Daily temperatures swing about 35°F between overnight low and afternoon high. Expect about 2 days with precipitation. Daylight averages about 13h 59m. For travel, August is hot.
Avg High
90.7°F
Avg Low
55.7°F
Precipitation
0.27 in
Daylight
13h 59m
August records in Pasco
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | 109.0°F (2009) | 45.0°F (2002) | 0.00 in (1945) |
| August 2 | 107.1°F (2024) | 48.9°F (2006) | 0.08 in (2013) |
| August 3 | 105.1°F (1998) | 44.1°F (2002) | 0.02 in (2003) |
| August 4 | 111.0°F (1998) | 48.9°F (2005) | 0.03 in (2024) |
| August 5 | 106.0°F (1998) | 43.0°F (2002) | 0.21 in (2004) |
| August 6 | 105.1°F (1945) | 48.9°F (2006) | 0.07 in (2004) |
| August 7 | 104.0°F (2012) | 44.1°F (2002) | 0.16 in (2023) |
| August 8 | 105.1°F (2018) | 46.0°F (2002) | 0.04 in (2016) |
| August 9 | 105.1°F (2018) | 48.0°F (2002) | 0.01 in (2019) |
| August 10 | 106.0°F (2018) | 48.0°F (2007) | 0.16 in (1945) |
| August 11 | 107.1°F (2021) | 44.1°F (2007) | 0.18 in (2019) |
| August 12 | 104.0°F (2015) | 46.9°F (2000) | 0.02 in (2009) |
| August 13 | 104.0°F (2004) | 48.0°F (2007) | 0.05 in (2017) |
| August 14 | 105.1°F (2023) | 46.0°F (2005) | 0.45 in (2014) |
| August 15 | 109.0°F (2023) | 48.0°F (2000) | 0.00 in (1945) |
| August 16 | 107.1°F (2023) | 44.1°F (2011) | 0.06 in (2025) |
| August 17 | 106.0°F (2020) | 46.0°F (2002) | 0.16 in (2020) |
| August 18 | 106.0°F (2022) | 46.9°F (2002) | 0.09 in (2008) |
| August 19 | 100.9°F (2022) | 46.0°F (2005) | 0.07 in (2007) |
| August 20 | 100.0°F (2004) | 45.0°F (2000) | 0.18 in (2008) |
| August 21 | 102.0°F (2022) | 45.0°F (2000) | 0.18 in (2002) |
| August 22 | 100.0°F (1945) | 46.0°F (2000) | 0.20 in (2001) |
| August 23 | 99.0°F (1945) | 45.0°F (2010) | 0.14 in (2001) |
| August 24 | 100.9°F (2025) | 43.0°F (2021) | 0.08 in (2004) |
| August 25 | 97.0°F (2011) | 43.0°F (2012) | 0.26 in (2013) |
| August 26 | 98.1°F (2022) | 46.0°F (2008) | 0.01 in (1945) |
| August 27 | 99.0°F (2011) | 45.0°F (1945) | 0.01 in (2025) |
| August 28 | 102.9°F (2023) | 43.0°F (2024) | 0.04 in (2012) |
| August 29 | 100.0°F (1998) | 43.0°F (2024) | 0.00 in (1945) |
| August 30 | 99.0°F (2007) | 45.0°F (2012) | 0.07 in (1999) |
| August 31 | 99.0°F (2022) | 39.9°F (2008) | 0.26 in (2010) |