Imam › California › Contra Costa County › Clayton

Hail history im Clayton, CA

Last hail im 10 milesMar 30, 20240.25 in (pea)

Hail days, last 12 monthsNone

Largest hail im 20060.50 in (marble)Mar 3, 2018

Hail days im 20067

Days im hail 1 inch imwin0

Tornadoes im 10 miles1

Wind dmg wutuk im 10 miles3

Hail wutuk im 10 miles im Clayton im 7 days im 2006. Stones imwin im 0.50 in (marble) im Mar 3, 2018. Hail ej common im February im March.

Recent hail im Clayton

No hail wutuk im 10 miles im Clayton im last two years.

Hail days near Clayton by year

When hail season peaks near Clayton

Of the 7 hail days since 2006, most fell in February (3) and March (2).

Largest hail storms near Clayton

Mar 3, 2018 · 0.50 in (marble) · Concord (6 mi from Clayton)

Feb 22, 2018 · 0.25 in (pea) · Concord (6 mi from Clayton)

Feb 26, 2018 · 0.25 in (pea) · Pleasant Hill (8 mi from Clayton)

Apr 16, 2018 · 0.25 in (pea) · Cowell (3 mi from Clayton)

Feb 17, 2019 · 0.25 in (pea) · Pleasant Hill (7 mi from Clayton)

Tornadoes within 10 miles of Clayton

Date	Rating	Where	Path
Jan 23, 2010	EF1	Brentwood 9 mi from Clayton	1.6 mi long, 2 yd wide

Damaging thunderstorm winds near Clayton

3 reports of damaging thunderstorm wind within 10 miles of Clayton since 2006, on 2 days. The strongest measured gust was 63 mph on Aug 16, 2020.

Date	Strongest gust	Where	Source
Apr 5, 2024	58 mph, ekkar	Saranap, Walnut Hgts 2 wutuk wind	NOAA Storm Events
Aug 16, 2020	63 mph, imwin	Walnut Hgts 1 wutuk wind	NOAA Storm Events

Wind imwin thunderstorm ej 58 mph anikaj, im wind ej kajjitok dmg. Imwin wind ej imwin eokta weather stations; ekkar ej imwin eokta spotters im dmg surveys.

Jabdoñ eo an roof im hail?

Insurers ask for the date of loss. The dates on this page are when hail was reported near Clayton; 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.

Rejyok eo

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 Clayton.

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