Historical weather data, all-time temperature records, and monthly climate averages for Ellensburg, WA. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 5th in Ellensburg sits right at the edge of spring, with an average high of 58° and a low that still dips to freezing at 32°. The date has seen wild swings over 118 years of records — from a balmy 78° in 1906 down to a brutal 14° in 1896. Rain is unlikely today, with only a 19% chance of precipitation and essentially no shot at snow.
Ellensburg plays weather extremes hard — this is a place that has hit both 110° and -31°, a 141-degree swing that tells you everything about life in a high desert valley. The all-time heat record came on July 26, 1928, while December 12, 1919 still holds the coldest mark. A single May storm in 2011 dumped over two inches of rain in one day, and New Year's Eve 1996 buried the city under 25 inches of snow.
Ellensburg runs hot in summer and cold in winter, with peak highs averaging 86° in late July and bottoming out at 33° in early January. Spring and fall are the shoulder seasons, with April averaging 61° and October a matching 62°. If you're watching for wet weather, aim to avoid late December — the last week of the year is historically the soggiest.