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Hail history for Blackhawk, CA
Hail has been reported within 10 miles of Blackhawk on 6 days since 2006. The largest stones measured 0.25 in (pea) on Mar 30, 2024. Hail is most common here in March and April.
Recent hail near Blackhawk
No hail was reported within 10 miles of Blackhawk in the last two years.
Hail days near Blackhawk by year
When hail season peaks near Blackhawk
Of the 6 hail days since 2006, most fell in March (4) and April (2).
Largest hail storms near Blackhawk
Mar 3, 2018 · 0.25 in (pea) · Danville (10 mi from Blackhawk)
Mar 14, 2018 · 0.25 in (pea) · Dublin (8 mi from Blackhawk)
Mar 17, 2018 · 0.25 in (pea) · Dublin (7 mi from Blackhawk)
Apr 16, 2018 · 0.25 in (pea) · Cowell (10 mi from Blackhawk)
Apr 6, 2020 · 0.25 in (pea) · San Ramon (5 mi from Blackhawk)
Damaging thunderstorm winds near Blackhawk
2 reports of damaging thunderstorm wind within 10 miles of Blackhawk since 2006, on 2 days. The strongest measured gust was 63 mph on Aug 16, 2020.
| Date | Strongest gust | Where |
|---|---|---|
| Apr 5, 2024 | 58 mph, estimated | Walnut Hgts 1 wind report |
| Aug 16, 2020 | 63 mph, measured | Walnut Hgts 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 Blackhawk; 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
- Concord
6 hail days - Oakland
12 hail days - Berkeley
9 hail days - Richmond
9 hail days - San Francisco
14 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 Blackhawk.
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