July weather in St. John, WA
The average temperature in St. John in July is 69.0°F (54.4°F–83.6°F). Average precipitation: 0.43 inches.
July is a summer month in St. John, and is warmer than the annual average of 49.3°F. Daily temperatures swing about 29.2°F between overnight low and afternoon high. Expect about 3 days with precipitation. Daylight averages about 15h 21m. For travel, July is a comfortable month to visit.
Avg High
83.6°F
Avg Low
54.4°F
Precipitation
0.43 in
Daylight
15h 21m
July records in St. John
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| July 1 | 95.0°F (2013) | 35.1°F (1981) | 0.34 in (1982) |
| July 2 | 99.0°F (2015) | 28.9°F (1981) | 0.59 in (1966) |
| July 3 | 99.0°F (2015) | 32.0°F (1981) | 0.34 in (1995) |
| July 4 | 100.0°F (1968) | 36.0°F (1999) | 1.16 in (1978) |
| July 5 | 100.0°F (1968) | 37.0°F (2002) | 0.17 in (1974) |
| July 6 | 100.0°F (1968) | 37.0°F (1996) | 0.45 in (1981) |
| July 7 | 99.0°F (1968) | 30.9°F (1984) | 1.62 in (1978) |
| July 8 | 99.0°F (1968) | 26.1°F (1981) | 0.24 in (1976) |
| July 9 | 102.0°F (1985) | 34.0°F (1981) | 0.62 in (1974) |
| July 10 | 100.9°F (1975) | 37.0°F (1972) | 0.62 in (1971) |
| July 11 | 100.9°F (2002) | 27.0°F (1981) | 0.23 in (1972) |
| July 12 | 104.0°F (1967) | 28.9°F (1981) | 0.30 in (1975) |
| July 13 | 102.9°F (1967) | 32.0°F (1979) | 0.74 in (1975) |
| July 14 | 102.9°F (2002) | 34.0°F (1981) | 1.09 in (1983) |
| July 15 | 99.0°F (1989) | 33.1°F (1981) | 0.40 in (1993) |
| July 16 | 100.0°F (1970) | 37.0°F (1968) | 0.48 in (1993) |
| July 17 | 99.0°F (2014) | 34.0°F (1981) | 0.62 in (1993) |
| July 18 | 100.0°F (1979) | 39.9°F (1981) | 0.22 in (1964) |
| July 19 | 100.0°F (1979) | 37.9°F (1965) | 0.17 in (2007) |
| July 20 | 100.0°F (1979) | 39.0°F (1984) | 0.31 in (2012) |
| July 21 | 100.0°F (1979) | 37.9°F (1966) | 0.61 in (1965) |
| July 22 | 107.1°F (1994) | 34.0°F (1984) | 0.13 in (2008) |
| July 23 | 102.9°F (1994) | 34.0°F (1982) | 0.12 in (1992) |
| July 24 | 102.0°F (1994) | 36.0°F (1968) | 0.14 in (2019) |
| July 25 | 98.1°F (1965) | 39.0°F (1979) | 0.39 in (1990) |
| July 26 | 102.9°F (1984) | 37.0°F (1966) | 0.24 in (2009) |
| July 27 | 102.0°F (1998) | 35.1°F (1985) | 0.28 in (1970) |
| July 28 | 102.0°F (1998) | 35.1°F (1985) | 0.42 in (2010) |
| July 29 | 100.0°F (1998) | 41.0°F (1978) | 0.10 in (1984) |
| July 30 | 100.0°F (2014) | 37.0°F (1980) | 0.25 in (1964) |
| July 31 | 100.0°F (1992) | 37.0°F (2006) | 0.36 in (1985) |