Hail HistoryHome › California › Alameda County › Castro Valley
Hail history for Castro Valley, CA
Hail has been reported within 10 miles of Castro Valley on 6 days since 2006. The largest stones measured 0.25 in (pea) on Apr 6, 2020. Hail is most common here in March and April.
Castro Valley ranks #1,109 for hail days among the 1,399 U.S. cities of 25,000 to 100,000 people. See the ranking →
Recent hail near Castro Valley
No hail was reported within 10 miles of Castro Valley in the last two years.
Hail days near Castro Valley by year
When hail season peaks near Castro Valley
Of the 6 hail days since 2006, most fell in March (2) and April (2).
Largest hail storms near Castro Valley
Jan 19, 2017 · 0.25 in (pea) · Oakland (9 mi from Castro Valley)
Mar 2, 2018 · 0.25 in (pea) · Oakland (8 mi from Castro Valley)
Mar 17, 2018 · 0.25 in (pea) · Dublin (9 mi from Castro Valley)
Apr 16, 2018 · 0.25 in (pea) · Oakland (9 mi from Castro Valley)
Nov 26, 2019 · 0.25 in (pea) · Oakland (10 mi from Castro Valley)
Damaging thunderstorm winds near Castro Valley
1 reports of damaging thunderstorm wind within 10 miles of Castro Valley since 2006, on 1 days. The strongest measured gust was 59 mph on Dec 14, 2024.
| Date | Strongest gust | Where |
|---|---|---|
| Dec 14, 2024 | 59 mph, measured | Oakland Intl. Airport 1 wind report |
Severe thunderstorm wind means gusts of 58 mph or more, or wind that caused damage. Measured gusts come from weather stations; estimated ones from spotters and damage surveys.
Filing a roof or car hail claim?
Insurers ask for the date of loss. The dates on this page are when hail was reported near Castro Valley; hail can hit one street and miss the next, so a report is not proof of damage at your address. A licensed roofer or your insurance adjuster can inspect the roof. Many policies set a time limit for filing a claim — check yours.
Nearby cities
- Oakland
12 hail days - Berkeley
9 hail days - San Francisco
14 hail days - Concord
6 hail days - Richmond
9 hail days - Sunnyvale
9 hail days - Santa Clara
12 hail days - San Jose
13 hail days
Data: NOAA NCEI Storm Events Database (final records through Jun 30, 2026) and National Weather Service Local Storm Reports (preliminary, since then). Distances are measured from the center of Castro Valley.
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