Walla Walla weather in April: Walla Walla, Washington: normal highs, lows, rain and records for April
Walla Walla in April has a normal high of 63°F and a normal low of 43°F, a daily mean of 53°F, rising from 59°F on the 1st to 67°F by the 30th. Measurable precipitation falls on 11 days in a normal April, 1.98 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 17°C and low of 6°C, 50 mm of precipitation in April.
- NOAA stationWalla Walla Regional Airport
- Station IDUSW00024160
- Location46.09°N 118.29°W
- Elevation1,166 ft (355 m)
- Population33,901
- Jan 42° 31°
- Feb 47° 33°
- Mar 56° 38°
- Apr 63° 43°
- May 71° 49°
- Jun 79° 55°
- Jul 90° 62°
- Aug 89° 62°
- Sep 79° 54°
- Oct 63° 44°
- Nov 49° 36°
- Dec 41° 30°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Walla Walla in April?
The normal high is 63°F and the normal low 43°F, for a daily mean of 52.5°F. April is 5.7°F warmer than March and 7.9°F cooler than May. April is the 7th warmest month of the year in Walla Walla and the 6th wettest. Across the month the normal high rises 8°F, from 59°F on April 1 to 67°F on April 30. From one year to the next April's mean temperature typically moves about 2.2°F either way (NOAA's standard deviation), so roughly two Aprils in three average between 50°F and 55°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 40%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| April 1 | 59°F | 41°F | 40% | 21% |
| April 8 | 61°F | 41°F | 39% | 20% |
| April 15 | 62°F | 42°F | 37% | 19% |
| April 22 | 64°F | 43°F | 34% | 17% |
| April 30 | 67°F | 45°F | 33% | 16% |
Every day of April: normal high, low and chance of precipitation (warmest afternoon April 30, coldest night April 1)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| April 1 | 59°F | 41°F | 40% | 21% | 12 h 50 min |
| April 2 | 60°F | 41°F | 40% | 21% | 12 h 50 min |
| April 3 | 60°F | 41°F | 39% | 21% | 12 h 50 min |
| April 4 | 60°F | 41°F | 39% | 21% | 12 h 50 min |
| April 5 | 60°F | 41°F | 39% | 21% | 13 h |
| April 6 | 60°F | 41°F | 39% | 21% | 13 h |
| April 7 | 60°F | 41°F | 39% | 21% | 13 h |
| April 8 | 61°F | 41°F | 39% | 20% | 13 h 10 min |
| April 9 | 61°F | 41°F | 39% | 20% | 13 h 10 min |
| April 10 | 61°F | 42°F | 38% | 20% | 13 h 10 min |
| April 11 | 61°F | 42°F | 38% | 20% | 13 h 20 min |
| April 12 | 61°F | 42°F | 38% | 20% | 13 h 20 min |
| April 13 | 62°F | 42°F | 37% | 19% | 13 h 20 min |
| April 14 | 62°F | 42°F | 37% | 19% | 13 h 30 min |
| April 15 | 62°F | 42°F | 37% | 19% | 13 h 30 min |
| April 16 | 62°F | 42°F | 36% | 18% | 13 h 30 min |
| April 17 | 63°F | 43°F | 36% | 18% | 13 h 40 min |
| April 18 | 63°F | 43°F | 36% | 18% | 13 h 40 min |
| April 19 | 63°F | 43°F | 35% | 18% | 13 h 40 min |
| April 20 | 63°F | 43°F | 35% | 18% | 13 h 50 min |
| April 21 | 64°F | 43°F | 35% | 17% | 13 h 50 min |
| April 22 | 64°F | 43°F | 34% | 17% | 13 h 50 min |
| April 23 | 64°F | 44°F | 34% | 17% | 13 h 50 min |
| April 24 | 65°F | 44°F | 34% | 17% | 14 h |
| April 25 | 65°F | 44°F | 34% | 17% | 14 h |
| April 26 | 65°F | 44°F | 34% | 17% | 14 h |
| April 27 | 66°F | 45°F | 34% | 17% | 14 h 10 min |
| April 28 | 66°F | 45°F | 33% | 16% | 14 h 10 min |
| April 29 | 66°F | 45°F | 33% | 16% | 14 h 10 min |
| April 30 | 67°F | 45°F | 33% | 16% | 14 h 20 min |
- Normal high
- 63°FApril average
- Normal low
- 43°FApril average
- Precipitation
- 1.98 inmonth total
- Days with precipitation
- 110.01 inch or more
- Nights at 32°F or colder
- 1
- Daylight
- 12 h 50 min to 14 h 20 minApril 1 to April 30
- Days at 70°F or more
- 6
- Days at 80°F or more
- 1
- Sunshine
- 79%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00024160; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Walla Walla in April?
On a given April day the chance of 0.01 inch or more is 36% on average, highest around April 1 (40%). In all, 1.98 in falls on 11 days of a normal April.
In a normal April in Walla Walla, 1 nights fall to freezing.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00024160.
How humid and windy is Walla Walla in April?
At 3 p.m. the normal temperature is 65°F with 37% relative humidity and a dew point of 38°F; at 6 a.m. it is 49°F with 69% humidity. The wind averages 9.0 mph, most often from the west-southwest in the afternoon. A dew point under 50°F feels dry.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 49°F | 39°F | 69% | 7.8 mph | 58% |
| 9 a.m. | 56°F | 40°F | 54% | 9.5 mph | 56% |
| noon | 62°F | 39°F | 43% | 9.5 mph | 55% |
| 3 p.m. | 65°F | 38°F | 37% | 9.2 mph | 56% |
| 6 p.m. | 62°F | 39°F | 43% | 8.9 mph | 61% |
| 9 p.m. | 54°F | 40°F | 60% | 9.5 mph | 60% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00024160. Hourly normals exist only for NOAA's first-order stations; a dash where NOAA publishes no value for that hour (the sky at some hours).
What are the records for April in Walla Walla?
The warmest April temperature on this station's record (since 1949) is 96°F, on April 24, 1977; the coldest is 20°F, on April 19, 1966. The wettest April brought 4.01 in (1978); the snowiest, 1.0 inches (1950).
The April mean against the 1991-2020 normal of 52.5°F: 2021 52.7°F (+0.2), 2022 45.9°F (−6.6), 2023 49.9°F (−2.6), 2024 51.8°F (−0.7), 2025 53.1°F (+0.6), 2026 53.1°F (+0.6). 3 of 6 ran warmer than normal.
| April | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 52.7°F | +0.2°F | 0.22 in |
| 2022 | 45.9°F | −6.6°F | 2.75 in |
| 2023 | 49.9°F | −2.6°F | 1.94 in |
| 2024 | 51.8°F | −0.7°F | 0.40 in |
| 2025 | 53.1°F | +0.6°F | 0.73 in |
| 2026 | 53.1°F | +0.6°F | 3.24 in |
Source: records: ACIS, station USW00024160; recent months: ACIS, station USW00024160. Records and recent months use complete months only.
How does April in Walla Walla compare across Washington?
Across the 96 places PlainClimate covers in Washington, April normal highs run from 53°F in Easton to 67°F in Pasco; Walla Walla's is 63°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.