The June issue of the Bulletin of the American Meteorological Society (BAMS) featured a new paper synthesizing over 70 articles on the record-breaking June 2021 Pacific Northwest (PNW) heat wave. I am a co-author on the article, collaborating with experts at Oregon State University and Portland State University. I summarize some of the main takeaways in this piece, and encourage you to check out the article for more details.| Washington State Climate Office
Warm and very dry conditions in June 2025 contributed to worsening drought conditions and declining streamflow statewide. June streamflow has dropped below normal as indicated on the monthly streamflow percentile map, courtesy of the USGS Water Watch. Almost all basins have below normal flow, and many across western Washington and the Cascades are now in the “much below normal” category. This means 10% or fewer years have seen lower streamflow during June in these basins.| Washington State Climate Office
ENSO-neutral conditions are still very likely to continue through the summer and early fall according to the Climate Prediction Center (CPC). Neutral conditions typically do not play a large role in determining our average summer weather, so the outlooks discussed below are determined mostly from seasonal forecast models. The 1-month July outlook from the CPC points toward little relief in sight.| Washington State Climate Office
June 2025 Climate Summary| Washington State Climate Office