County Hazards

States › California › Lake County

Lake County, California

Recorded hazard history: storm events since 1950, federal disaster declarations since 1953, flood insurance claims since 1978, and FEMA's risk index.

FIPS 06033 · 68,766 residents (2021) · 1,257 sq mi · dominant hazard Flood

Hail · 2Tornado · 0Flood · 27Wind · 0Winter · 0
1990-09-25: Hail2022-05-10: Hail2006-01-01: Flood2014-12-11: Flood2017-01-10: Flood2017-02-09: Flood2018-10-03: Flood2019-02-13: Flood2019-02-14: Flood2019-02-14: Flood2019-02-14: Flood2019-02-25: Flood2019-05-30: Flood2022-12-27: Flood2023-01-05: Flood2023-01-09: Flood2023-01-09: Flood2023-03-10: Flood2024-02-19: Flood2024-02-19: Flood2024-02-04: Flood2025-02-04: Flood2025-02-13: Flood2025-02-04: Flood2026-01-05: Flood2026-01-05: Flood2026-01-05: Flood2026-01-05: Flood
Lake County within California. Dots: HailFlood event locations in the kept record. Boundaries: US Census Bureau.

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. NCEI storm records through 30 Jun 2026; OpenFEMA declarations refreshed 1 Oct 2026; NFIP claims as of 8 Sep 2026.

Between 1950 and 2026, NCEI recorded 53 storm events in Lake County, California, led by floods and flash floods.

That is 4.2 events per 100 square miles, below the California figure of 26.2, and 7.7 per 10,000 residents against 10.4 statewide.

4 events fall in the 12 months to 30 Jun 2026. NCEI attributes 1 death and 4 injuries to events in the county, with property damage estimated at $8.8M.

FEMA has designated the county in 35 federal disaster declarations since 1953; the most recent is Boyles Fire (fire management assistance, 8 Sep 2024).

National Flood Insurance Program policyholders in the county filed 1,432 claims since 1978, of which 1,083 were paid, totalling $14M (about $13K per paid claim). FEMA counts 871 residential flood policies in force.

FEMA's National Risk Index rates the county's overall risk as "Relatively Moderate" and its expected annual loss as "Relatively Moderate" ($101M a year across 18 hazards).

4events, last 12 monthsto 30 Jun 2026
53events since 19501 death, 4 injuries recorded
35disaster declarationslast 8 Sep 2024
1,432NFIP flood claims$14M paid

Compared with California and the United States

MeasureLake CountyCaliforniaUS
Recorded events since 19505340,8491,977,440
Events per 100 square miles4.226.256.0
Events per 10,000 residents7.710.459.6
Events in the last 12 months41,23362,008
Deaths recorded by NCEI11,17026,435
Property damage (NCEI estimates)$8.8M$30B$575B
NFIP claims per 1,000 residents20.81.48.1
Average paid NFIP claim$13K$21K$43K
Claims per 100 policies in force, last 10 years19.15.016.1

County-recorded events plus zone-recorded events whose forecast zone is named for the county. State and US rows include events recorded only by forecast zone. Rates use 2021 Census population and land area.

Events by decade

Hail: 1Flood: 1Other: 2
Flood: 1Other: 2
Flood: 10Other: 6
Hail: 1Flood: 15Lightning: 1Other: 13
01950s01960s01970s01980s41990s32000s162010s302020s
Recorded events in Lake County by decade and hazard group. HailFloodLightningOther NCEI recorded only tornadoes, hail and thunderstorm wind before 1996.

Trend: 43 events in the 20 years to 2025 against 6 in the 20 years before. Reporting practice changed in 1996 and again with automated reports in the 2000s, so decade totals measure the record as much as the weather.

Events by type

Flood27
Other23
Hail2
Lightning1
HazardEventsDeathsShare of state's events
■ Flood2710.4%detail
■ Other23—0.6%
■ Hail2—0.2%
■ Lightning1—0.3%

Hazard pages exist for hail, tornado, flood, wind and winter where the county has at least 10 recorded events. "Other" covers heavy rain, debris flow, dust, funnel clouds and similar reports.

Largest recorded events

DateEvent typeGroupMagnitudeProperty damageCrop damageDeathsInjuriesGeography
1 Jan 2006FloodFlood—$1.0M—11County
13 Feb 2019FloodFlood—$20K——3County
9 Feb 2017FloodFlood—$7.0M———County
11 Dec 2014FloodFlood—$400K———County
11 Dec 2014Debris FlowOther—$300K———County

Ranked by deaths, then injuries, then NCEI's damage estimate. Deaths and injuries are NCEI counts (direct plus indirect); no personal details are recorded here.

Federal disaster declarations

DeclaredNumberTypeIncidentTitlePrograms
8 Sep 2024FM-5536Fire management assistanceFireBoyles FirePublic assistance
3 Apr 2023DR-4699Major disasterSevere StormSevere Winter Storms, Straight-Line Winds, Flooding, Landslides, And MudslidesPublic assistance
10 Mar 2023EM-3592EmergencyFloodSevere Winter Storms, Flooding, Landslides, And MudslidesPublic assistance
9 Jan 2023EM-3591EmergencyFloodSevere Winter Storms, Flooding, And MudslidesPublic assistance
12 Sep 2021DR-4619Major disasterFireWildfiresPublic assistance
22 Aug 2020DR-4558Major disasterFireWildfiresIndividual assistance, Public assistance
18 Aug 2020FM-5331Fire management assistanceFireLnu Lightning Fire ComplexPublic assistance
22 Mar 2020DR-4482Major disasterBiologicalCovid-19 PandemicIndividual assistance, Public assistance
13 Mar 2020EM-3428EmergencyBiologicalCovid-19Public assistance
17 May 2019DR-4434Major disasterSevere StormSevere Winter Storms, Flooding, Landslides, And MudslidesPublic assistance
4 Aug 2018DR-4382Major disasterFireWildfires And High WindsIndividual assistance, Public assistance
28 Jul 2018FM-5262Fire management assistanceFireMendocino Fire ComplexPublic assistance
24 Jun 2018FM-5244Fire management assistanceFirePawnee FirePublic assistance
10 Oct 2017DR-4344Major disasterFireWildfiresIndividual assistance, Public assistance
9 Oct 2017FM-5221Fire management assistanceFireSulphur FirePublic assistance
1 Apr 2017DR-4308Major disasterFloodSevere Winter Storms, Flooding, And MudslidesPublic assistance
14 Feb 2017DR-4301Major disasterSevere StormSevere Winter Storms, Flooding, And MudslidesPublic assistance
14 Aug 2016FM-5145Fire management assistanceFireClayton FirePublic assistance
22 Sep 2015DR-4240Major disasterFireValley Fire And Butte FireIndividual assistance, Public assistance
13 Sep 2015FM-5112Fire management assistanceFireValley FirePublic assistance
2 Aug 2015FM-5093Fire management assistanceFireRocky FirePublic assistance
13 Aug 2012FM-5004Fire management assistanceFireWye FirePublic assistance
5 Jun 2006DR-1646Major disasterSevere StormSevere Storms, Flooding, Landslides, And MudslidesPublic assistance
3 Feb 2006DR-1628Major disasterSevere StormSevere Storms, Flooding, Mudslides, And LandslidesIndividual assistance, Public assistance
13 Sep 2005EM-3248EmergencyHurricaneHurricane Katrina EvacuationPublic assistance
4 Sep 2004FM-2554Fire management assistanceFireCa-Geysers Fire-09-04-2004Public assistance
9 Feb 1998DR-1203Major disasterSevere StormSevere Winter Storms And FloodingIndividual assistance, Public assistance
4 Jan 1997DR-1155Major disasterSevere StormSevere Storms, Flooding, Mud And LandslidesIndividual assistance, Public assistance
12 Mar 1995DR-1046Major disasterSevere StormSevere Winter Storms, Flooding Landslides, Mud FlowIndividual assistance, Public assistance
10 Jan 1995DR-1044Major disasterSevere StormSevere Winter Storms, Flooding, Landslides, Mud FlowsIndividual assistance, Public assistance
21 Feb 1986DR-758Major disasterFloodSevere Storms & FloodingIndividual assistance, Public assistance
9 Feb 1983DR-677Major disasterCoastal StormCoastal Storms, Floods, Slides & TornadoesIndividual assistance, Public assistance
20 Jan 1977EM-3023EmergencyDroughtDroughtPublic assistance
16 Feb 1970DR-283Major disasterFloodSevere Storms & FloodingIndividual assistance, Public assistance
24 Dec 1964DR-183Major disasterFloodHeavy Rains & FloodingIndividual assistance, Public assistance

Declarations in which FEMA designated this county, from the OpenFEMA Disaster Declarations Summaries (v2). DR: major disaster; EM: emergency; FM: fire management assistance. Programs show whether individual or public assistance was made available.

Flood insurance claims

197820022026
NFIP claims by year of loss in Lake County, 1978 to 2026 (hover for the amount paid).
Claims since 19781,432
Paid claims1,083
Total paid$14M
Average paid claim$13K
Repetitive-loss properties15924 severe
Residential policies in force8712.4% of 36,234 structures
Year of lossClaimsPaid claimsAmount paidAverage paid
202521$5,828$5,828
202451$32,471$32,471
202363$17,876$5,959
202210$0—
202120$0—
202020$0—
20193325$652,282$26,091
201711588$1,826,462$20,755
201653$38,829$12,943
201510$0—
2014138$165,355$20,669
201222$29,327$14,664
2011205$42,535$8,507
201031$18,144$18,144
200863$23,591$7,864
200710$0—
200674$79,709$19,927
20051110$315,852$31,585
200496$106,097$17,683
200293$55,650$18,550
200010$0—
199932$1,979$990
1998477379$4,881,015$12,879
19972319$168,878$8,888
1996158$79,752$9,969

OpenFEMA NFIP claims (v3, as of 8 Sep 2026), aggregated by year of loss; amounts are building, contents and increased-cost-of-compliance payments as recorded. Repetitive-loss counts from the NFIP Multiple Loss Properties file (2 Aug 2026); policies in force from the NFIP Residential Penetration Rates file (3 Aug 2026).

National Risk Index

Overall riskRelatively Moderatescore 93.0 of 100
Expected annual loss$101MRelatively Moderate
Social vulnerabilityRelatively High
Community resilienceRelatively Low
Hazard (NRI)Risk ratingExpected annual loss
Inland floodingRelatively High$51,469,401
EarthquakeRelatively Moderate$23,780,145
WildfireRelatively High$20,339,490
DroughtRelatively High$2,319,621
AvalancheRelatively High$1,278,682
LandslideRelatively High$872,430
Volcanic activityRelatively Moderate$483,874
Heat waveRelatively Low$328,531
TornadoVery Low$59,567
LightningVery Low$58,822
Winter weatherRelatively Low$19,635
Strong windVery Low$6,001
HailVery Low$5,276

FEMA National Risk Index, December 2025 release. Ratings are FEMA's relative comparison of counties; expected annual loss is FEMA's modelled estimate of average yearly building, population and agriculture loss. See how to read the NRI.

Hurricane and tropical storm passes

No HURDAT2 track at tropical-storm strength passes within 100 miles of the county's centre point (through the 2025 season).

ZIP codes with flood claims

ZIP codes whose NFIP claims carry this county's code, with the number of claims. Five or more claims are needed for a ZIP page to be indexed.

Questions and answers

How often does it hail in Lake County, CA?

NCEI records 2 hail events in Lake County since 1950, in 2 different years; that is about 0.0 recorded events a year. 0 reports were golf-ball size (1.75 in) or larger.

Has Lake County had a tornado?

NCEI records no tornado in Lake County since 1950.

When was the last federal disaster declaration for Lake County?

8 Sep 2024: Boyles Fire, a fire management assistance declaration for fire. The county appears in 35 declarations since 1953.

How many flood insurance claims have been filed in Lake County, and how much was paid?

1,432 NFIP claims since 1978, 1,083 of them paid, for $14M in total. FEMA publishes these figures redacted and aggregated; individual properties are not identified.

Is Lake County in the National Risk Index's high-risk band?

FEMA's National Risk Index (December 2025) rates the county "Relatively Moderate" for overall risk, "Relatively Moderate" for expected annual loss, "Relatively High" for social vulnerability and "Relatively Low" for community resilience. These ratings are FEMA's relative comparison across all US counties.

How does Lake County compare with the rest of California?

4.2 recorded events per 100 square miles against 26.2 statewide, and 20.8 NFIP claims per 1,000 residents against 1.4. The comparison table on this page shows each measure beside the state and national figures.

Provenance

Storm events: NOAA NCEI Storm Events Database, yearly details files through 30 Jun 2026 (public domain). Declarations: OpenFEMA DisasterDeclarationsSummaries v2, refreshed 1 Oct 2026. Flood claims: OpenFEMA NfipClaims v3 as of 8 Sep 2026; NfipMultipleLossProperties v1 (2 Aug 2026); NfipResidentialPenetrationRates v1 (3 Aug 2026). Risk index: FEMA National Risk Index, December 2025. Hurricane tracks: NHC HURDAT2 through 2025. Population and area: US Census Bureau, 2021 vintage. Built 1 Oct 2026; see the methodology and corrections pages. Hazard hubs: Hail · Tornado · Flood · Wind · Winter.