By Jacob Genuise
As of March 31st, a La Niña advisory is still in place according to the Climate Prediction Center (CPC). Nevertheless, La Niña conditions have continued to weaken, and we are expecting to enter a neutral ENSO phase during April. There is a 62% chance that ENSO-neutral conditions will then persist through the summer months. Although forecast accuracy is low beyond the summer months, La Niña or ENSO-neutral conditions are favored over El Niño conditions for the upcoming fall and winter.
Due to weak signals from large-scale features such as ENSO and little agreement among climate models, the CPC’s monthly and seasonal outlooks show equal chances of above, below, and near-normal temperatures and precipitation for the entire state of Washington.
Climate Prediction Center
1-month outlook for April temperature (left) and precipitation (right) Source: Climate Prediction Center.
April-May-June Seasonal Outlook for temperatures (left) and precipitation (right). Source: Climate Prediction Center.
Nationally, we are likely to see warm and dry conditions build across the southwestern and south central United States as we head into late spring. The CPC’s summer (June-July-August) outlook indicates that dry and warm conditions are then expected to expand into the PNW this summer.
Seasonal temperature (left) and precipitation (right) outlooks for June-July-August 2025. Source: Climate Prediction Center.