Historical weather data, all-time temperature records, and monthly climate averages for Anacortes, WA. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 4th in Anacortes sits squarely in the shoulder season, with a historical average high of 54° and low of 40° across 74 years of data. Nearly half of all April 4ths have seen some precipitation, though snow is essentially off the table. The date's range is striking — from a 70° scorcher in 1966 down to a brutal 25° low in 2011.
Anacortes is a mild maritime town, but it's not without teeth — the all-time record high of 88° in July 2015 and an all-time low of -1° in January 1950 show it can occasionally go to extremes. The wettest single day on record dropped 3.03 inches back in September 1983, and a 9-inch snowfall in late December 1996 remains the benchmark for rare winter chaos here.
Summer is the clear winner for visitors — highs peak in the upper 60s during the third week of July, and the region stays comfortable through August and September. Early January is the coolest stretch, with highs averaging just 45°. If you're trying to dodge rain, skip late November, which is the wettest week of the year at around 0.7 inches on average.