Historical weather data, all-time temperature records, and monthly climate averages for Centralia, WA. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 4 in Centralia typically lands in that classic Pacific Northwest in-between zone — expect a high around 58° and a low of 37°, with a coin-flip's chance of rain at 59%. The date has seen some wild swings over 117 years of records, from a balmy 82° back in 1949 to a brutal 24° low in 1918.
Centralia's weather has real teeth at the extremes — the all-time high of 107° on June 28, 2021 was a bruising reminder of the Pacific Northwest heat dome, while the record low of -4° in January 1930 shows winters here can occasionally bite hard. A single January day in 1990 dropped 4.13 inches of rain, and 12 inches of snow fell in one shot in January 1950.
July and August are your best bets for warmth, with highs hovering around 79-80° and the driest stretch of the year. If you're cold-averse, avoid early January, when highs average just 45°. Late November is when the rain really takes hold — the wettest week of the year averages nearly 2 inches of precipitation in just seven days.