Early November Climate Outlook

Key Messages:

Very strong El Niño conditions continue in the tropical Pacific. The latest seasonal RONI index for August-October was +2.0°C. Some continued strengthening is possible before reaching peak strength sometime in the October-December period.  

November 2026 Drought and Streamflow Update

Key Messages: 

Streamflows remain near or below record lows across the majority of basins in the state mostly due to below normal fall precipitation. 

Streamflows are especially low relative to normal in the Central and Northern Cascades and in the Okanogans.   

October 2026 Climate Summary

Key Messages: 

October was drier than normal across much of the state. The higher elevations of the north Cascades as well as the eastern Cascades foothills and adjacent plains received less than 30% of normal precipitation.