California, 2024Excessive Heat in California, September 3 to 10, 2024
September 3 to 10, 2024 · NWS SGX · 4 events in 4 counties and zones
A heat wave developed starting Labor Day weekend and peaked the next weekend September 5 to 9, 2024. The hottest days included Ramona reaching 114, Santa Ana 113, and Anaheim an all-time record of 112.
Every event with a place to put it; 4 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.
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- Deaths
- 0
- Injuries
- 2
- Property damage
- $10,000
- Crop damage
- None recorded
- Events
- 4
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
A heat wave developed starting Labor Day weekend and peaked the next weekend September 5 to 9, 2024. The hottest days included Ramona reaching 114, Santa Ana 113, and Anaheim an all-time record of 112.
Excessive Heat, San Bernardino and Riverside County Valleys - the Inland Empire
- When
- September 3, 1:00 PM PST to September 10, 12:00 AM PST
- Where
- San Bernardino and Riverside County Valleys - the Inland Empire forecast zone
- Property damage
- $10,000
- Reported by
- ASOS
- Coordinates
- 34.293, -116.086 (the zone’s center; the record gives no point)
Extreme heat started September 3 and continued through September 10, 2024. The hottest days were September 5 to 8, when high temperatures reached 105 to 114F across the entire Inland Empire. Despite scattered thunderstorms on September 7 and 8th, the high temperatures were still around 110F at many locations in the Inland Empire.
Excessive Heat, San Diego County Valleys
- When
- September 4, 12:00 PM PST to September 9, 11:00 PM PST
- Where
- San Diego County Valleys forecast zone
- Reported by
- Mesonet
- Coordinates
- 33.028, -116.770 (the zone’s center; the record gives no point)
High temperatures across inland San Diego county valleys reached 100 to 112F from September 4 to 9, 2024. The hottest days were September 6 and 8, when maximum temperatures reached 103 to 110F along I-15 corridor.
Excessive Heat, Coachella Valley
- When
- September 4, 12:00 PM PST to September 9, 11:00 PM PST
- Where
- Coachella Valley forecast zone
- Reported by
- Mesonet
- Coordinates
- 33.744, -115.994 (the zone’s center; the record gives no point)
High temperatures were excessive in the Coachella Valley from September 4 to 9, 2024. The hottest day was observed on September 5th, when maximum temperatures were 115F at several locations including climate sites such as Palm Springs and Borrego Springs.
Excessive Heat, Orange County Inland
- When
- September 6, 12:00 PM PST to September 9, 10:00 PM PST
- Where
- Orange County Inland forecast zone
- Injuries
- 2 direct, 0 indirect
- Reported by
- Broadcast Media
- Coordinates
- 33.677, -117.776 (the zone’s center; the record gives no point)
High temperature reached a record 112 in Anaheim on September 6, 2024. The heat wave lasted through September 9th with high temperatures of 104 to 113F across inland Orange County. A woman and a child were found in a locked vehicle on September 6th. The child died at the hospital. Authorities reported the air temperature at 104 when they arrived at 420 pm. Authorities reported that alcohol was involved and the mother of the child was later arrested. 112 exceeds the prior all-time high temperature at Anaheim which was 109 set in September 2020.
- Excessive Heat
- Heat at or above the local excessive heat warning criteria, or heat that caused deaths.
After NWS Directive 10-1605, the rules offices file Storm Data by.
- Lightning Strike in Florida, September 3, 2024$30,000 · 1 event
- Heavy Rain in Florida, September 3, 2024$20,000 · 1 event
- Flash Flooding and Flood in Florida, September 3 to 4, 202413 events
- Flash Flooding in Texas, September 3 to 4, 20248 events
- Damaging Winds in Montana, September 3, 202461 kt wind · 7 events
- Tornado and Flood in Florida, September 3 to 4, 2024EF0 · 3 events
- Damaging Winds in Wyoming, September 3, 202457 kt wind · 3 events
- Damaging Winds in Utah, September 3, 202458 kt wind · 3 events
- Flash Flooding in Texas, September 3, 20242 events
- Flash Flood and Damaging Wind in Idaho, September 3, 2024$200 · 50 kt wind · 2 events
- Damaging Winds in Wyoming, September 3, 202463 kt wind · 2 events
- Lightning Strike in Florida, September 3, 2024$10,000 · 1 event
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-10-01. Each event’s entry at NCEI: 1219626, 1219630, 1219632, 1218698.