States › California › 2023
California, 2023
The year's recorded storm events, federal disaster declarations and flood insurance claims.
NCEI notes that Storm Data is compiled from a variety of sources including the National Weather Service, other federal, state and local agencies, the media and the public; that property and crop damage figures are estimates; and that some events are recorded by NWS forecast zone rather than by county. FEMA notes that NFIP claim records are redacted and aggregated to protect the privacy of policyholders.
Events by hazard
Includes events recorded by forecast zone. The state's yearly total for 2023 was 3,126 against 2,824 in 2022.
Counties with the most recorded events
Notable events
| Date | County | Event type | Magnitude | Property damage | Deaths | Injuries |
|---|---|---|---|---|---|---|
| 1 Sep 2023 | Forecast zone | Dust Storm | — | — | 3 | — |
| 10 Jan 2023 | Tulare | Flood | — | $100,000 | 2 | — |
| 1 May 2023 | Fresno | Flood | — | — | 2 | — |
| 2 Jul 2023 | Forecast zone | Avalanche | — | — | 1 | 2 |
| 1 Mar 2023 | Forecast zone | Winter Storm | — | $500,000 | 1 | 1 |
| 21 Mar 2023 | Forecast zone | Strong Wind | 40 mph | $10 | 1 | 1 |
| 10 Mar 2023 | Alameda | Flood | — | — | 1 | 1 |
| 9 Jan 2023 | San Luis Obispo | Flash Flood | — | — | 1 | 1 |
| 21 Mar 2023 | San Francisco | Strong Wind | 23 mph | — | 1 | 1 |
| 9 Jan 2023 | Forecast zone | Strong Wind | 30 mph | $1,000 | 1 | — |
| 21 Mar 2023 | Forecast zone | Strong Wind | 20 mph | $10 | 1 | — |
| 21 Mar 2023 | Forecast zone | Strong Wind | 35 mph | $10 | 1 | — |
| 9 Jan 2023 | Sonoma | Flood | — | — | 1 | — |
| 1 Jan 2023 | Sacramento | Flash Flood | — | — | 1 | — |
| 1 Jan 2023 | Sacramento | Flash Flood | — | — | 1 | — |
| 3 Jan 2023 | El Dorado | Flood | — | — | 1 | — |
| 4 Jan 2023 | Solano | Flood | — | — | 1 | — |
| 1 Jan 2023 | Sacramento | Flash Flood | — | — | 1 | — |
| 7 Jan 2023 | Forecast zone | Strong Wind | 40 mph | — | 1 | — |
| 7 Jan 2023 | Forecast zone | Strong Wind | 54 mph | — | 1 | — |
| 14 Jan 2023 | San Francisco | Thunderstorm Wind | 15 mph | — | 1 | — |
| 26 Feb 2023 | Forecast zone | Heavy Snow | — | — | 1 | — |
| 9 Jan 2023 | San Luis Obispo | Flash Flood | — | — | 1 | — |
| 27 Mar 2023 | Forecast zone | Heavy Snow | — | — | 1 | — |
| 29 May 2023 | Forecast zone | Cold/Wind Chill | — | — | 1 | — |
| 27 May 2023 | Forecast zone | Cold/Wind Chill | — | — | 1 | — |
| 4 Jun 2023 | Forecast zone | Cold/Wind Chill | — | — | 1 | — |
| 14 Jun 2023 | Forecast zone | Avalanche | — | — | 1 | — |
| 21 Mar 2023 | San Francisco | Strong Wind | 20 mph | — | 1 | — |
| 14 Jul 2023 | Forecast zone | Excessive Heat | — | — | 1 | — |
| 1 Jul 2023 | Forecast zone | Excessive Heat | — | — | 1 | — |
| 30 Aug 2023 | Forecast zone | High Wind | 29 mph | — | 1 | — |
| 20 Aug 2023 | Inyo | Flash Flood | — | $500,000,000 | — | — |
| 15 Aug 2023 | Forecast zone | Wildfire | — | $2,300,000 | — | 23 |
| 1 Jan 2023 | Sacramento | Flash Flood | — | $134,000,000 | — | — |
| 1 Jan 2023 | Sacramento | Flood | — | $134,000,000 | — | — |
| 1 Jan 2023 | San Joaquin | Flood | — | $107,000,000 | — | — |
| 21 Jan 2023 | Forecast zone | Frost/Freeze | — | — | — | 5 |
| 4 Mar 2023 | Tuolumne | Flood | — | $42,000,000 | — | — |
| 1 Sep 2023 | Imperial | Flash Flood | — | $30,000,000 | — | — |
Up to 40 events with deaths, injuries, damage of $50,000 or more, or a tornado rating, ranked by deaths, injuries and damage.
Federal disaster declarations in 2023
| Declared | Number | Type | Incident | Title | Counties |
|---|---|---|---|---|---|
| 21 Nov 2023 | DR-4750 | Major disaster | Hurricane | Tropical Storm Hilary | 5 |
| 18 Oct 2023 | DR-4746 | Major disaster | Tropical Storm | Tropical Storm Hilary | 0 |
| 27 Sep 2023 | DR-4743 | Major disaster | Hurricane | Tropical Storm Hilary | 0 |
| 25 May 2023 | DR-4714 | Major disaster | Severe Storm | Severe Storm And Flooding | 0 |
| 18 May 2023 | DR-4713 | Major disaster | Severe Storm | Severe Winter Storm And Flooding | 0 |
| 25 Apr 2023 | DR-4707 | Major disaster | Winter Storm | Severe Winter Storms And Mudslides | 0 |
| 3 Apr 2023 | DR-4699 | Major disaster | Severe Storm | Severe Winter Storms, Straight-Line Winds, Flooding, Landslides, And Mudslides | 46 |
| 10 Mar 2023 | EM-3592 | Emergency | Flood | Severe Winter Storms, Flooding, Landslides, And Mudslides | 43 |
| 8 Mar 2023 | DR-4692 | Major disaster | Earthquake | Earthquake | 0 |
| 14 Jan 2023 | DR-4683 | Major disaster | Flood | Severe Winter Storms, Flooding, Landslides, And Mudslides | 44 |
| 9 Jan 2023 | EM-3591 | Emergency | Flood | Severe Winter Storms, Flooding, And Mudslides | 41 |
Flood insurance claims with a 2023 date of loss
1,815 NFIP claims, 1,150 of them paid, for $64,898,271.
Sources: NOAA NCEI Storm Events through 30 Jun 2026; OpenFEMA DisasterDeclarationsSummaries v2 (29 Sep 2026); OpenFEMA NfipClaims v3 (8 Sep 2026). Built 30 Sep 2026.