The article discusses the contrasting climatic conditions in Northern and Central California over the summer months of 2025. Notably, the region has experienced an unusually cool start, with May to mid-July marked by cool marine air and persistent cloud cover, making it one of the coldest early summer periods in decades for certain coastal areas. Meanwhile, inland regions have faced higher-than-average temperatures, with some areas recording extreme heat.
The article highlights how a high-pressure system over the Pacific has contributed to these contrasting climates by promoting upwelling of cold ocean water along the coast, further cooling coastal temperatures. In contrast, inland areas have suffered from dry conditions with high evaporation demands.
As summer progresses, forecast models suggest a return of heat waves to California, especially by mid-August, as coastal upwelling decreases and inland ridges intensify. This shift could lead to a wildfire-prone season ahead. Overall, the article emphasizes the ongoing unique climate patterns and the potential for severe weather events due to climate change.
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