July weather in Prosser, WA
The average temperature in Prosser in July is 75.0°F (59.5°F–90.4°F). Average precipitation: 0.21 inches.
July is a summer month in Prosser, and is warmer than the annual average of 53°F. Daily temperatures swing about 30.9°F between overnight low and afternoon high. Expect about 2 days with precipitation. Daylight averages about 15h 14m. For travel, July is hot.
Avg High
90.4°F
Avg Low
59.5°F
Precipitation
0.21 in
Daylight
15h 14m
July records in Prosser
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| July 1 | 109.9°F (2021) | 37.0°F (2014) | 0.18 in (1991) |
| July 2 | 102.0°F (1942) | 37.9°F (1955) | 0.53 in (1966) |
| July 3 | 106.0°F (2013) | 39.9°F (1971) | 0.69 in (1978) |
| July 4 | 105.1°F (2015) | 39.9°F (1977) | 0.43 in (1998) |
| July 5 | 106.0°F (2007) | 39.9°F (1977) | 0.20 in (1948) |
| July 6 | 104.0°F (1975) | 37.9°F (1971) | 0.23 in (1955) |
| July 7 | 105.1°F (1968) | 37.0°F (1971) | 0.13 in (1963) |
| July 8 | 104.0°F (2012) | 39.9°F (1981) | 0.31 in (1963) |
| July 9 | 104.0°F (2012) | 42.1°F (1983) | 0.36 in (1997) |
| July 10 | 106.0°F (2024) | 33.1°F (2011) | 0.43 in (1954) |
| July 11 | 105.1°F (2024) | 39.9°F (1971) | 0.31 in (1975) |
| July 12 | 107.1°F (2002) | 37.9°F (1943) | 0.03 in (1982) |
| July 13 | 109.9°F (2002) | 35.1°F (2011) | 0.09 in (1970) |
| July 14 | 111.0°F (2002) | 33.1°F (2011) | 0.20 in (1983) |
| July 15 | 105.1°F (1938) | 41.0°F (1982) | 0.21 in (1966) |
| July 16 | 105.1°F (1941) | 39.9°F (1939) | 0.24 in (2012) |
| July 17 | 107.1°F (1941) | 41.0°F (1942) | 0.10 in (1974) |
| July 18 | 102.9°F (1941) | 43.0°F (1962) | 0.11 in (1977) |
| July 19 | 102.9°F (1960) | 43.0°F (1930) | 0.38 in (1974) |
| July 20 | 104.0°F (1931) | 44.1°F (1949) | 0.06 in (2004) |
| July 21 | 105.1°F (1938) | 44.1°F (1929) | 0.09 in (2001) |
| July 22 | 105.1°F (1938) | 39.9°F (1982) | 0.11 in (1992) |
| July 23 | 104.0°F (1998) | 30.9°F (2012) | 0.16 in (1961) |
| July 24 | 108.0°F (2006) | 41.0°F (2024) | 0.21 in (1992) |
| July 25 | 104.0°F (2006) | 44.1°F (1949) | 0.11 in (1983) |
| July 26 | 107.1°F (1939) | 43.0°F (1969) | 0.28 in (1983) |
| July 27 | 109.9°F (1939) | 44.1°F (1929) | 0.52 in (1940) |
| July 28 | 108.0°F (1998) | 42.1°F (1959) | 0.45 in (1947) |
| July 29 | 108.0°F (2022) | 43.0°F (2001) | 0.26 in (1958) |
| July 30 | 109.0°F (2022) | 42.1°F (1945) | 0.14 in (1997) |
| July 31 | 109.0°F (2022) | 43.0°F (1937) | 0.02 in (1960) |