California Hail MapStatewide Hail Storm Data & Swaths
California averages 40 hail storms per year with peak activity during January – March (atmospheric rivers), May–July (dry hail). Live swath data from NOAA SPC and radar-verified reports — updated hourly. Average claim value: $35,000.
View California on the Interactive Hail Map
Filter by date range and hail size. Stack multiple events to compare swaths and estimate combined property exposure.
California Hail Statistics
40
Avg. Annual Hail Storms
4
Avg. Annual Tornadoes
January – March (atmospheric rivers), May–July (dry hail)
Peak Hail Season
$35,000
Avg. Hail Claim Value
Live Storm Feed
Recent California Hail Events
No significant hail recorded in the California area in the last 90 days.
Check the national hail map for the latest U.S. events.
Source: NOAA SPC hail reports. Data updated hourly. View 12-month history →
Hail Insurance & Contractor Rules in California
California has one of the strictest post-disaster solicitation laws in the country. Contractors are prohibited from soliciting in a declared disaster area for 7 days after the declaration. PAs must hold a CA license. TCPA and CCPA compliance both apply.
Get Alerted + Automated Outreach When Hail Hits California
AI-STORMS monitors all of California 24/7. When qualifying hail is detected, we discover affected properties, skip-trace owner contacts, and deploy compliant outreach within 35 minutes. Beat your competitors to every storm lead.
Frequently Asked Questions
When was the last significant hail storm in California?
Our storm feed has not recorded significant hail in California in the last 90 days. Use the interactive hail map for real-time data.
Does insurance cover hail damage in California?
California has one of the strictest post-disaster solicitation laws in the country. Contractors are prohibited from soliciting in a declared disaster area for 7 days after the declaration. PAs must hold a CA license. TCPA and CCPA compliance both apply. Most standard homeowners policies cover hail damage to roofs, siding, and windows under dwelling coverage. Check your declarations page for hail-specific deductibles, which may be expressed as a percentage of insured value rather than a flat amount.
How big does hail need to be to damage a roof?
Hail 0.75" (dime-size) can dent soft metals. Hail 1.0" (quarter-size) bruises asphalt shingles and causes granule loss. Hail 1.5"+ (golf ball-size) causes structural damage most insurers will cover for full replacement. A qualified roofing contractor or public adjuster can identify claim-eligible damage that isn't visible to the untrained eye.
What time of year does California get the most hail?
California averages 40 hail storms per year, with peak activity during January – March (atmospheric rivers), May–July (dry hail). This is when warm, moist air from the Gulf meets dry air from the west, creating the atmospheric instability that fuels severe thunderstorms and hail-producing supercells.