San Diego shatters records as historic March heat grips the region

SAN DIEGO (KGTV) — San Diego County just experienced a wave of heat more typical of mid-summer than early spring—breaking records and pushing temperatures to rare extremes for March.

A powerful ridge of high pressure settled over Southern California this week, acting like a lid on the atmosphere. This system compressed and heated the air, sending temperatures soaring well above seasonal norms.

RECORDS FALL ACROSS SAN DIEGO COUNTY

Several cities didn’t just break daily records—they reached all-time March highs:

  • Oceanside surged into the upper 90s
  • Escondido climbed into the low 100s
  • El Cajon also reached triple digits

These temperatures are highly unusual for March, when average highs typically sit in the upper 60s to low 70s.

Overall, much of the region experienced temperatures 20 to 30 degrees above normal, creating dangerous and uncomfortable conditions, especially for inland communities.

WHY IT FELT SO INTENSE

This wasn’t just about high temperatures—it was also about duration and overnight warmth…

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