Slater, WA
Unincorporated community in Walla Walla County, Washington
Slater is a small unincorporated community in Walla Walla County, Washington. It is 8.5 miles SW of Wallula, the nearest town. Its ZIP code is 99323.
Slater at a glance
- State
- Washington
- County
- Walla Walla County
- ZIP code
- 99323
- Nearest town
- Wallula (8.5 mi)
- Time zone
- America/Los Angeles
- Coordinates
- 46.1867, -118.8058
Weather in Slater now
Loading the National Weather Service forecast…
Slater weather by the hour
Slater weather for the next 7 days
Source: National Weather Service (NOAA) · forecast for the coordinates of Slater.
This week in Slater
Sunrise, sunset and moon in Slater
What is the weather usually like in Slater?
Köppen climate classification, calculated from the 1991–2020 normals
- Julywarmest month · 89°F average high
- Januarycoldest month · 29°F average low
- 11.1 inprecipitation per year · 282 mm
- 2.0 insnowfall per year · 5 cm
Average high and low temperature (°F)
Average precipitation (inches)
Best time to visit Slater: May–June and August–September, with mild temperatures and fewer rainy days.
Source: NOAA NCEI U.S. Climate Normals 1991–2020, station ICE HARBOR DAM, WA US (USC00453883), adjusted for the elevation of Slater.
Slater weather month by month
Sunrise and sunset in Slater through the year
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:31 AM | 4:37 PM | 9 h 6 min |
| February | 6:55 AM | 5:22 PM | 10 h 26 min |
| March | 7:05 AM | 7:02 PM | 11 h 56 min |
| April | 6:06 AM | 7:44 PM | 13 h 37 min |
| May | 5:20 AM | 8:23 PM | 15 h 2 min |
| June | 5:01 AM | 8:50 PM | 15 h 49 min |
| July | 5:17 AM | 8:45 PM | 15 h 28 min |
| August | 5:53 AM | 8:05 PM | 14 h 12 min |
| September | 6:32 AM | 7:08 PM | 12 h 35 min |
| October | 7:11 AM | 6:10 PM | 10 h 59 min |
| November | 6:55 AM | 4:24 PM | 9 h 29 min |
| December | 7:29 AM | 4:11 PM | 8 h 42 min |
Times for the 15th of each month, local time (America/Los Angeles).
What is the weather like in Slater?
Slater has a cold semi-arid climate. The warmest month is July, with an average high of 89°F (32°C), and the coldest is January, with average lows of 29°F (-2°C).
It gets about 11.1 inches (282 mm) of precipitation a year. The wettest month is December and the driest is July. Snow is common: about 2 inches fall in an average year.
The best time to visit Slater is May–June and August–September. The live forecast on this page comes from the National Weather Service and the climate averages from NOAA’s 1991–2020 U.S. Climate Normals.
Webcams near Slater
The closest live webcam is Burbank Heights: US 12 at MP 295: SR 124 Interchange, 10.0 miles W of Slater.
Webcams: Windy.com. Distances in a straight line from Slater.
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Map of Slater, WA
Tap any road on the map to see it in Street View below. Map: © OpenStreetMap contributors.
Slater Street View
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Open in Google Maps ›Towns near Slater
Other communities near Slater
Questions about Slater
Where is Slater, WA?
Slater is an unincorporated community in Walla Walla County, Washington, 8.5 miles SW of Wallula.
What county is Slater in?
Slater is in Walla Walla County, Washington.
What is the ZIP code of Slater, WA?
The ZIP code for Slater is 99323.
What is the nearest town to Slater?
Wallula, 8.5 miles away.
Are there webcams near Slater?
Yes. The closest is Burbank Heights: US 12 at MP 295: SR 124 Interchange, 10.0 miles away.
What is the hottest month in Slater?
July, with an average high of 89°F (32°C).
What is the coldest month in Slater?
January, with an average low of 29°F (-2°C).
How much does it rain in Slater?
About 11.1 inches (282 mm) a year; the wettest month is December.
Does it snow in Slater?
Yes, about 2 inches of snow fall in an average year.
When is the best time to visit Slater?
May–June and August–September, when temperatures are most pleasant and rainy days are fewer.
What climate does Slater have?
Cold semi-arid (Köppen BSk).
Last updated: