Overview

• San Francisco’s July average temperature of 59.3°F is about one degree below normal, San Jose’s average of 67.4°F sits roughly two degrees below typical highs, and Oakland has reached 75°F only once this month.
• The city has logged measurable rainfall on five days this July for only the second time since records began in 1850, matching its all-time count of July rain days.
• A stalled offshore low-pressure system combined with a westward-shifted high pressure has intensified coastal upwelling, bringing colder deep ocean water to the surface and reinforcing persistent fog and drizzle.
• National Weather Service forecasts indicate the drizzly, cool conditions will persist through the end of July with no significant warm-up expected along the coast.
• In contrast, inland Northern California towns like Orleans and Redding have endured seven and eleven days above 100°F respectively this month, raising wildfire concerns under relentless heatwaves.