Mill Plain Weather in July
Average highs run from 78°F on July 1 to 83°F on July 31, and lows from 55°F to 58°F. Normal precipitation for the month is 0.65 in over about 3 wet days.
July day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
July at a glance
- Average high
- 82°F
- Average low
- 57°F
- Precipitation
- 0.65 in
- Record high
- 107°FJul 30, 1965
- Record low
- 43°FJul 2, 1955
- Chance of a freeze
- 0%
- Days of 90°F or more
- 5.9
- Daylight
- 15 h 38 min to 14 h 46 min
- Cloud cover
- 43%
- Humidity
- 72%
- Dew point
- 54°F
- Wind
- 4.3 mph
Every day of the month
A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.
| Date | Normal high | Normal low | Record high | Record low | Chance wet | Chance of snow |
|---|---|---|---|---|---|---|
| Jul 1 | 78°F | 55°F | 105°F 1942 | 48°F 1963 | 19% | 0% |
| Jul 2 | 79°F | 55°F | 102°F 1942 | 43°F 1955 | 19% | 0% |
| Jul 3 | 79°F | 55°F | 99°F 1970 | 45°F 1954 | 18% | 0% |
| Jul 4 | 79°F | 56°F | 97°F 1972 | 48°F 1977 | 17% | 0% |
| Jul 5 | 80°F | 56°F | 99°F 2024 | 48°F 2010 | 17% | 0% |
| Jul 6 | 80°F | 56°F | 99°F 2024 | 46°F 1977 | 16% | 0% |
| Jul 7 | 80°F | 56°F | 100°F 2024 | 46°F 1971 | 15% | 0% |
| Jul 8 | 80°F | 56°F | 102°F 2024 | 45°F 1981 | 15% | 0% |
| Jul 9 | 81°F | 56°F | 104°F 2024 | 47°F 1960 | 14% | 0% |
| Jul 10 | 81°F | 56°F | 102°F 2007 | 48°F 1960 | 14% | 0% |
| Jul 11 | 81°F | 57°F | 104°F 1961 | 48°F 1950 | 13% | 0% |
| Jul 12 | 81°F | 57°F | 102°F 1961 | 47°F 1943 | 13% | 0% |
| Jul 13 | 82°F | 57°F | 101°F 1941 | 48°F 1968 | 13% | 0% |
| Jul 14 | 82°F | 57°F | 103°F 1941 | 51°F 1939 | 12% | 0% |
| Jul 15 | 82°F | 57°F | 103°F 1941 | 48°F 1943 | 12% | 0% |
| Jul 16 | 82°F | 57°F | 104°F 1979 | 49°F 1946 | 12% | 0% |
| Jul 17 | 82°F | 57°F | 102°F 1979 | 49°F 1955 | 11% | 0% |
| Jul 18 | 83°F | 58°F | 104°F 1944 | 47°F 1986 | 11% | 0% |
| Jul 19 | 83°F | 58°F | 102°F 1956 | 48°F 1962 | 11% | 0% |
| Jul 20 | 83°F | 58°F | 103°F 1994 | 49°F 1950 | 11% | 0% |
| Jul 21 | 83°F | 58°F | 104°F 2006 | 50°F 1984 | 10% | 0% |
| Jul 22 | 83°F | 58°F | 98°F 1978 | 49°F 1954 | 10% | 0% |
| Jul 23 | 83°F | 58°F | 103°F 2004 | 46°F 1963 | 10% | 0% |
| Jul 24 | 83°F | 58°F | 100°F 1984 | 50°F 1964 | 10% | 0% |
| Jul 25 | 83°F | 58°F | 100°F 1988 | 49°F 1963 | 10% | 0% |
| Jul 26 | 83°F | 58°F | 102°F 2022 | 48°F 1951 | 10% | 0% |
| Jul 27 | 83°F | 58°F | 103°F 2009 | 47°F 1959 | 9% | 0% |
| Jul 28 | 83°F | 58°F | 106°F 2009 | 50°F 1963 | 9% | 0% |
| Jul 29 | 83°F | 58°F | 106°F 2009 | 50°F 1941 | 9% | 0% |
| Jul 30 | 83°F | 58°F | 107°F 1965 | 47°F 1945 | 9% | 0% |
| Jul 31 | 83°F | 58°F | 102°F 1965 | 48°F 1953 | 9% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (PDT).
- July 1
- sunrise 5:25 AM, sunset 9:03 PM
- July 31
- sunrise 5:53 AM, sunset 8:39 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00356750 (Portland WFO), public domain. Records: NOAA GHCN-Daily, station USW00024229, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.