July weather in Lake Oswego, OR
The average temperature in Lake Oswego in July is 70.5°F (57.0°F–83.9°F). Average precipitation: 0.50 inches.
July is a summer month in Lake Oswego, and is warmer than the annual average of 55.4°F. Daily temperatures swing about 26.9°F between overnight low and afternoon high. Daylight averages about 15h 9m. For travel, July is a comfortable month to visit.
Avg High
83.9°F
Avg Low
57.0°F
Precipitation
0.50 in
Daylight
15h 9m
July records in Lake Oswego
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| July 1 | 100.0°F (1967) | 42.1°F (1948) | 0.91 in (1983) |
| July 2 | 98.1°F (1991) | 41.0°F (1976) | 0.64 in (1916) |
| July 3 | 98.1°F (1970) | 44.1°F (1949) | 0.61 in (1983) |
| July 4 | 97.0°F (1970) | 43.0°F (1949) | 1.00 in (1986) |
| July 5 | 98.1°F (1960) | 43.0°F (1949) | 0.59 in (1959) |
| July 6 | 100.9°F (1960) | 42.1°F (2020) | 0.28 in (1948) |
| July 7 | 99.0°F (2024) | 43.0°F (1949) | 0.30 in (1915) |
| July 8 | 102.0°F (1952) | 45.0°F (1981) | 0.99 in (1974) |
| July 9 | 102.0°F (2024) | 46.0°F (1960) | 0.52 in (1995) |
| July 10 | 104.0°F (2007) | 45.0°F (1960) | 0.56 in (1997) |
| July 11 | 104.0°F (1961) | 42.1°F (2020) | 0.10 in (1972) |
| July 12 | 105.1°F (1961) | 43.0°F (2020) | 0.22 in (2011) |
| July 13 | 102.9°F (1961) | 39.9°F (2020) | 0.90 in (1920) |
| July 14 | 98.1°F (1952) | 50.0°F (1967) | 0.40 in (1964) |
| July 15 | 98.1°F (1970) | 46.9°F (1982) | 0.49 in (1986) |
| July 16 | 104.0°F (1979) | 39.9°F (1983) | 0.89 in (1916) |
| July 17 | 102.0°F (1979) | 46.0°F (1949) | 0.95 in (1974) |
| July 18 | 100.0°F (1956) | 45.0°F (1962) | 0.35 in (1977) |
| July 19 | 107.1°F (1956) | 42.1°F (2019) | 1.06 in (1983) |
| July 20 | 100.0°F (1994) | 43.0°F (2019) | 0.71 in (1993) |
| July 21 | 105.1°F (2006) | 46.9°F (1949) | 0.18 in (1912) |
| July 22 | 102.0°F (1980) | 45.0°F (2019) | 0.45 in (2014) |
| July 23 | 104.0°F (2004) | 46.0°F (1953) | 0.44 in (2014) |
| July 24 | 102.0°F (2004) | 46.9°F (1948) | 0.32 in (1949) |
| July 25 | 100.0°F (1988) | 46.9°F (1948) | 0.12 in (2015) |
| July 26 | 100.9°F (1998) | 46.0°F (1953) | 0.83 in (1955) |
| July 27 | 106.0°F (1958) | 45.0°F (1959) | 0.43 in (1948) |
| July 28 | 105.1°F (2009) | 46.0°F (1959) | 0.30 in (1950) |
| July 29 | 108.0°F (2009) | 46.9°F (1956) | 0.09 in (1915) |
| July 30 | 102.9°F (2009) | 48.0°F (1953) | 0.62 in (2001) |
| July 31 | 102.0°F (2015) | 46.0°F (1953) | 0.25 in (1989) |