Washington State Climate Office
@wastateclimate.bsky.social
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Official Washington State Climate Office at the University of Washington account. Visit our NEW website: https://climate.uw.edu/
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wastateclimate.bsky.social
The Washington State Climate Office (WASCO) is now on Bluesky! Follow to be among the first to learn about WASCO announcements, research, newsletters, and general Washington climate and weather tidbits.
wastateclimate.bsky.social
Our October 2025 Newsletter is now live! September was likely the warmest September on record, and statewide drought continues. La Niña conditions are now in effect, and wetter than normal conditions are expected Oct.-Dec.

Read about recent and upcoming conditions:
climate.uw.edu/news/categor...
Scatter plot of September 2025 temperature and precipitation relative to all Septembers back to 1979. Source: https://climatetoolbox.org/tool/historical-climate-scatter
Reposted by Washington State Climate Office
ecology.wa.gov
Happy October & Flood Awareness Month! Join us with @emd.wa.gov @oicwa.bsky.social & @wadnr.bsky.social this month to learn what flood tricks to look out for and some treats to help you be prepared. Check out our blog about flooding in WA & how to get flood risk maps: ecology.wa.gov/blog/october...
A flooded road with “road closed” sign at point where water is crossing the street.
wastateclimate.bsky.social
Happy 2026 Water Year! Fill out the PNW Water Year 2025 Impacts Survey to let us know how WA, OR, and ID were impacted by abnormally dry or abnormally wet conditions during the 2025 water year (Oct 1, 2024 - Sep 30, 2025). Open through Nov 26, 2025.

uwashington.qualtrics.com/jfe/form/SV_...
Decorative banner image for the Annual PNW WY Impacts Survey.
wastateclimate.bsky.social
Odds tilt toward favoring wetter than normal conditions across the state from October-December with greater uncertainty for temperatures.

Sea surface temperatures in the Tropical Pacific continue to cool. La Niña conditions may develop in the next couple of months.

climate.uw.edu/2025/09/18/l...
Climate Prediction Center October-December Temperature and Precipitation Outlook. Precipitation is most likely to be above normal for this period. Temperatures have equal chances of being below, above, or near-normal.
wastateclimate.bsky.social
Summer featured record heat and record dryness across large portions of the state. Read our August and Full Summer 2025 Climate Summary to learn more!

climate.uw.edu/2025/09/08/a...
June-August 2025 precipitation and temperature percentile maps for Washington State, created using ClimateToolbox.org. Darkest brown and red shadings reflect record dry and warm conditions over this period, respectively.
Reposted by Washington State Climate Office
profcgarza.bsky.social
We are recruiting near peer mentors for the Valiant program. We seek one 4th year undergrad & one grad student to serve as mentors. Financial compensation provided. See the link below to learn more & apply. @uwsafs.bsky.social @uwenvironment.bsky.social uwashington.qualtrics.com/jfe/form/SV_...
Logo for Valiant near-peer mentoring program featuring a scene of a mountain.
wastateclimate.bsky.social
A La Niña Watch is in place. What might this mean for the upcoming fall and winter in Washington?

Read our latest Climate Outlook to learn more:
climate.uw.edu/2025/08/21/l...

What can you expect over the next couple of weeks? More persistent summer heat continues statewide.☀️
Late August Climate Outlook
climate.uw.edu
wastateclimate.bsky.social
🌡️Dangerous heat returns late this week and through the weekend.

Then, summertime temperatures stick around in the PNW into early September. The Climate Prediction Center's short term outlooks show above normal temperatures are likely to continue through Sept 4.
CPC's 6-10 day outlook with above normal temperatures from August 27-31. CPC's 8-14 day outlook with above normal temperatures from August 29-September 4.
wastateclimate.bsky.social
Do you live in Skagit or Island County? WSU Extension is offering a new Climate Stewards program with coursework and field trips on local climate topics. This fall session begins September 16th. Scholarships are available!

Learn more and and register now:
wsu.co1.qualtrics.com/jfe/form/SV_...
wastateclimate.bsky.social
Our August WASCO Newsletter features a recap of July weather and drought conditions as well as a look ahead at expected conditions over the next few months. Visit our website for more:

🔗 climate.uw.edu/news/categor...
wastateclimate.bsky.social
What time of day do we tend to experience our hottest temperatures in WA? Noon? 1pm? Hint: later than you may think!

Our latest Climate Matters details daily heat timing in WA compared to other locations around the country!

🔗 climate.uw.edu/2025/08/11/o...

#CoolDownTuesday
A photo of a large sunflower in full bloom with a blue, sunny sky in the background.
wastateclimate.bsky.social
🌡️The forecast is looking quite hot early next week!

Learn more about regional heat adaptation efforts at the Planning for Heat in the Puget Sound webinar on August 12, 2-3:30pm PST.

Our very own Karin Bumbaco will be presenting!

Learn more and register: climate.uw.edu/2025/07/31/w...
Webinar Registration open for Planning for Heat in the Puget Sound Region
climate.uw.edu
wastateclimate.bsky.social
🌡️☀️The 2021 heat wave was one for the record books... literally. Just how unusual was the event climatologically? What did it reveal about heat preparedness in our region?

Read a synopsis of a newly-released synthesis paper on the 2021 heat wave:

🔗 climate.uw.edu/2025/07/08/a...
A New Paper Synthesizing Studies on the June 2021 Pacific Northwest Heat Wave Now Available
climate.uw.edu
wastateclimate.bsky.social
The June 2025 edition of the WASCO Monthly Newsletter is hot off the digital presses. 📰

Learn more about worsening drought conditions during May, and get a sneak peak at expectations for summer conditions.

climate.uw.edu/news/categor...
Precipitation anomaly for May 2025. Map courtesy of Climate Toolbox.
Reposted by Washington State Climate Office
ecology.wa.gov
It’s official! We’ve expanded the drought emergency to include 19 more watersheds. After the initial declaration in April, we’ve continued to see dry conditions. Making this declaration helps make sure that tools and funding are available for the drier months ahead.
ecology.wa.gov/about-us/who...
Michael Scott is declaring expanded drought over the state of Washington. There is an image of the expanded drought area.
wastateclimate.bsky.social
The summer Climate Prediction Center outlook is here! Conditions are likely to be warmer and drier than normal across the state. 🌡️

climate.uw.edu/2025/05/19/l...
Reposted by Washington State Climate Office
Reposted by Washington State Climate Office
meadekrosby.bsky.social
The NW Climate Adaptation Science Center has delivered hundreds of projects informing resource management in a changing climate. Our training programs provide the pipeline of climate-ready natural resource workers the NW desperately needs.

Proposed cuts to USGS would eliminate the CASC program.
Trump swings budget ax at USGS biology research
Plan to eliminate $307 million ecosystem program could face obstacles in Congress
www.science.org
wastateclimate.bsky.social
Curious about long-term trends in the onset of spring across Washington? 🌷🌱 Read our latest April edition of Climate Matters to learn more:

🔗 climate.uw.edu/2025/05/05/t...
Table of mean date of last frost and mean date of first 75°F day of the year for stations across Washington. Mean last frost dates range from March 16 at SeaTac Airport to May 11 in Pullman.
wastateclimate.bsky.social
La Niña has officially ended. The latest Seasonal Outlooks, produced by the Climate Prediction Center, show higher chances of below normal precipitation☀️ and above normal temperatures🌡️ for May-July 2025 across Washington State.

Read more about impacts to WA State:
🔗 climate.uw.edu/2025/04/17/l...
National maps of seasonal temperature and precipitation outlooks indicate warmer than normal and drier than normal conditions for the northwestern United States from May-July 2025. Maps courtesy of the Climate Prediction Center.
wastateclimate.bsky.social
March 2025 brought above normal precipitation (115% of normal*) and above normal temperatures (+1.9°F above normal*) across the State of Washington. Read the full story in our monthly Climate Summary:

🔗 climate.uw.edu/2025/04/04/m...

*anomalies calculated relative to 1991-2020 statewide normals
March 2025 Climate Summaryarrowarrowarrowarrowarrowarrowearthlab-uw
climate.uw.edu
wastateclimate.bsky.social
Curious to learn more about drought impacts and drought response during the 2024 Water Year? The Pacific Northwest Water Year 2024 Impacts Assessment is here!

Read more about how below average spring snowpack and large swings in temperatures impacted water users:

🔗 climate.uw.edu/2025/04/04/t...
A photograph depicts a river as it winds around a forested and hilly landscape and serves as the cover image for the Pacific Northwest Water Year 2024 Impacts Assessment.