Historical weather data, all-time temperature records, and monthly climate averages for Kirkland, WA. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 5 in Kirkland runs cool and damp — expect a high near 57° with a coin-flip chance of rain. The date has seen everything from a balmy 74° back in 2007 to a frosty 33° low as recently as 2021, so don't put the jacket away just yet.
Kirkland's weather has real range: the thermometer has swung from a blistering 107° during the infamous Pacific Northwest heat dome of June 2021 all the way down to 10° in December 1990. That same brutal winter delivered 8 inches of snow in a single day, while a December 2007 storm dropped over 4 inches of rain in 24 hours.
Summer is the clear winner for visitors — late July through early August peaks at a comfortable 79° average high with minimal rain. If you're avoiding the wet season, steer clear of mid-to-late November, which is Kirkland's soggiest stretch at nearly 1.6 inches per week. Winters are mild but gray, with December highs hovering around 46°.