July weather in Mill Creek, WA
The average temperature in Mill Creek in July is 63.5°F (54.7°F–72.3°F). Average precipitation: 0.84 inches.
July is a summer month in Mill Creek, and is warmer than the annual average of 51.4°F. Daily temperatures swing about 17.6°F between overnight low and afternoon high. Expect about 6 days with precipitation. Daylight averages about 15h 27m. For travel, July is one of the best months of the year to visit.
Avg High
72.3°F
Avg Low
54.7°F
Precipitation
0.84 in
Daylight
15h 27m
July records in Mill Creek
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| July 1 | 86.0°F (2014) | 46.9°F (1949) | 0.95 in (1999) |
| July 2 | 88.0°F (2015) | 41.0°F (1950) | 0.27 in (1999) |
| July 3 | 86.0°F (2015) | 44.1°F (1949) | 0.41 in (2008) |
| July 4 | 84.9°F (2015) | 44.1°F (1949) | 0.18 in (1951) |
| July 5 | 87.1°F (2023) | 46.0°F (2002) | 0.12 in (2005) |
| July 6 | 84.9°F (2024) | 48.0°F (1949) | 0.24 in (2004) |
| July 7 | 89.1°F (2024) | 46.0°F (1949) | 0.52 in (2002) |
| July 8 | 89.1°F (2024) | 48.0°F (1949) | 0.44 in (2002) |
| July 9 | 93.0°F (2024) | 48.9°F (2011) | 0.10 in (2019) |
| July 10 | 84.0°F (2007) | 50.0°F (1949) | 0.05 in (2019) |
| July 11 | 90.0°F (2007) | 50.0°F (1949) | 0.01 in (2005) |
| July 12 | 91.0°F (1951) | 48.0°F (1950) | 0.28 in (2009) |
| July 13 | 84.9°F (2025) | 48.9°F (1948) | 0.11 in (2012) |
| July 14 | 82.0°F (2024) | 50.0°F (1950) | 0.04 in (2011) |
| July 15 | 87.1°F (2018) | 48.0°F (1950) | 0.45 in (2001) |
| July 16 | 89.1°F (2025) | 48.9°F (1950) | 0.37 in (1999) |
| July 17 | 84.0°F (2024) | 46.9°F (1949) | 0.21 in (2019) |
| July 18 | 87.1°F (2004) | 50.0°F (1949) | 0.31 in (2007) |
| July 19 | 93.9°F (2015) | 50.0°F (1999) | 0.20 in (1948) |
| July 20 | 82.0°F (2023) | 48.0°F (1950) | 0.44 in (2012) |
| July 21 | 90.0°F (2006) | 48.9°F (1949) | 0.16 in (2011) |
| July 22 | 89.1°F (2006) | 50.0°F (2011) | 0.42 in (2000) |
| July 23 | 91.0°F (2004) | 48.9°F (1951) | 0.96 in (2014) |
| July 24 | 90.0°F (2004) | 50.0°F (2008) | 0.29 in (2023) |
| July 25 | 86.0°F (2018) | 48.9°F (1948) | 0.19 in (1949) |
| July 26 | 90.0°F (2022) | 48.9°F (1949) | 0.32 in (1948) |
| July 27 | 88.0°F (2009) | 48.0°F (1949) | 0.28 in (1948) |
| July 28 | 91.9°F (2009) | 48.0°F (1949) | 0.33 in (2001) |
| July 29 | 100.0°F (2009) | 52.0°F (1949) | 0.16 in (2024) |
| July 30 | 91.0°F (2022) | 48.9°F (1949) | 0.44 in (2001) |
| July 31 | 91.0°F (2022) | 48.0°F (2002) | 0.27 in (2008) |