Walla Walla County Weather in April
Average highs run from 59°F on April 1 to 67°F on April 30, and lows from 41°F to 45°F. Normal precipitation for the month is 1.98 in over about 11 wet days.
April day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
April at a glance
- Average high
- 63°F
- Average low
- 43°F
- Precipitation
- 1.98 in
- Record high
- 96°FApr 24, 1977
- Record low
- 20°FApr 19, 1966
- Chance of a freeze
- 38%
- Daylight
- 12 h 50 min to 14 h 20 min
- Cloud cover
- 62%
- Humidity
- 62%
- Dew point
- 37°F
- Wind
- 8.7 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 |
|---|---|---|---|---|---|---|
| Apr 1 | 59°F | 41°F | 75°F 1992 | 27°F 2008 | 40% | |
| Apr 2 | 60°F | 41°F | 83°F 1992 | 28°F 2008 | 40% | |
| Apr 3 | 60°F | 41°F | 79°F 2000 | 30°F 1972 | 39% | |
| Apr 4 | 60°F | 41°F | 79°F 1960 | 28°F 1961 | 39% | |
| Apr 5 | 60°F | 41°F | 82°F 1952 | 29°F 1961 | 39% | |
| Apr 6 | 60°F | 41°F | 83°F 1977 | 28°F 1956 | 39% | |
| Apr 7 | 60°F | 41°F | 88°F 1977 | 26°F 1973 | 39% | |
| Apr 8 | 61°F | 41°F | 79°F 1977 | 30°F 2011 | 39% | |
| Apr 9 | 61°F | 41°F | 83°F 1985 | 30°F 1952 | 39% | |
| Apr 10 | 61°F | 42°F | 81°F 1949 | 28°F 2010 | 38% | |
| Apr 11 | 61°F | 42°F | 79°F 2004 | 27°F 2021 | 38% | |
| Apr 12 | 61°F | 42°F | 82°F 1988 | 27°F 2020 | 38% | |
| Apr 13 | 62°F | 42°F | 84°F 1985 | 27°F 1968 | 37% | |
| Apr 14 | 62°F | 42°F | 84°F 1962 | 30°F 2022 | 37% | |
| Apr 15 | 62°F | 42°F | 85°F 1984 | 30°F 1967 | 37% | |
| Apr 16 | 62°F | 42°F | 82°F 1949 | 31°F 1978 | 36% | |
| Apr 17 | 63°F | 43°F | 85°F 1949 | 28°F 1964 | 36% | |
| Apr 18 | 63°F | 43°F | 87°F 1962 | 27°F 1966 | 36% | 0% |
| Apr 19 | 63°F | 43°F | 80°F 2016 | 20°F 1966 | 35% | 0% |
| Apr 20 | 63°F | 43°F | 85°F 1956 | 28°F 1951 | 35% | 0% |
| Apr 21 | 64°F | 43°F | 82°F 1956 | 26°F 1951 | 35% | 0% |
| Apr 22 | 64°F | 43°F | 86°F 1977 | 33°F 1951 | 34% | 0% |
| Apr 23 | 64°F | 44°F | 93°F 1977 | 32°F 1972 | 34% | 0% |
| Apr 24 | 65°F | 44°F | 96°F 1977 | 31°F 1950 | 34% | 0% |
| Apr 25 | 65°F | 44°F | 88°F 1977 | 33°F 1955 | 34% | 0% |
| Apr 26 | 65°F | 44°F | 82°F 1992 | 31°F 2008 | 34% | 0% |
| Apr 27 | 66°F | 45°F | 86°F 1987 | 30°F 1955 | 34% | 0% |
| Apr 28 | 66°F | 45°F | 87°F 1987 | 33°F 1967 | 33% | 0% |
| Apr 29 | 66°F | 45°F | 87°F 1957 | 33°F 1950 | 33% | 0% |
| Apr 30 | 67°F | 45°F | 85°F 1957 | 22°F 1972 | 33% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (PDT).
- April 1
- sunrise 6:33 AM, sunset 7:23 PM
- April 30
- sunrise 5:42 AM, sunset 8:02 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00024160 (Walla Walla Rgnl AP), public domain. Records: NOAA GHCN-Daily, station USW00024160, 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.