San Bernardino County, California tornadoes

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33confirmed tornadoes since NOAA records began in 1950 (the first here in 1954). Most recent: April 16, 2019, EF0. 2026 so far: 0 preliminary reports preliminary

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Map

Every tornado path in the county

Tornado paths, 1950 to 2025
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(E)F0(E)F1(E)F2(E)F3(E)F4(E)F5Unrated

Each path is a straight line from where the tornado started to where it ended, which is all most NOAA records hold. Tap a path for its details.

Recent warnings

Recent warnings in San Bernardino County

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The record

At a glance

Total331950 to 2025
Per year0.4average since 1950
Peak monthAugust8 of 33
StrongestF2Jun 25, 1954
Deaths0whole paths, see note
Injuries3whole paths, see note

Deaths and injuries are NOAA's totals for each tornado's whole path, which can extend beyond San Bernardino County.

Seasons

When tornadoes hit here

By month

80 Jan: 0Feb: 0Mar: 2Apr: 2May: 4Jun: 2Jul: 5Aug: 8Sep: 8Oct: 1Nov: 1Dec: 0JanFebMarAprMayJunJulAugSepOctNovDec

August is the peak month, with 8 of 33 tornadoes.

By time of day

70 12 AM: 0: 0: 03 AM: 0: 0: 06 AM: 0: 0: 09 AM: 0: 0: 012 PM: 2: 4: 53 PM: 5: 1: 36 PM: 5: 7: 19 PM: 0: 0: 012 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM

Most often around 7:00 PM. Times as recorded by NOAA, mostly Central Standard Time.

By year, 1950 to 2025

60 1950: 0: 0: 0: 0: 1: 0: 0: 0: 0: 01960: 0: 0: 0: 0: 0: 1: 1: 0: 0: 01970: 0: 0: 0: 0: 1: 0: 6: 0: 0: 01980: 0: 0: 1: 1: 0: 0: 1: 1: 0: 01990: 2: 1: 0: 0: 0: 0: 0: 5: 1: 02000: 0: 2: 0: 0: 2: 1: 0: 0: 1: 02010: 0: 0: 0: 1: 0: 1: 0: 1: 0: 12020: 0: 0: 0: 0: 0: 019501960197019801990200020102020

The line is the five-year average. Tornadoes before about 1953 were under-reported, and better radar since the 1990s finds more weak ones.

By rating

EF0
23
EF1
8
EF2
2

Ratings before February 2007 use the original F scale; the numbers line up with today's EF scale. Unknown means NOAA could not assign a rating.

The record

Notable tornadoes

Strongest

F2, June 25, 1954

0.1 mile path Longest path

9 miles, F1

May 18, 1997, whole path Widest

800 yards, F0

August 14, 2004
Every tornado

All 33 tornadoes, newest first

DateRatingPath lengthWidthDeathsInjuries
Apr 16, 2019EF01.59 mi50 yd00
May 7, 2017EF00.01 mi50 yd00
Jul 19, 2015EF00.24 mi50 yd00
Aug 18, 2013EF01.02 mi3 yd00
Aug 4, 2008EF11.08 mi100 yd00
Mar 4, 2005F00.5 mi15 yd00
Aug 14, 2004F01 mi800 yd00
Aug 14, 2004F01 mi200 yd00
Jul 7, 2001F01 min/a00
Apr 21, 2001F13 mi50 yd00
Aug 25, 1998F01 mi30 yd00
Aug 7, 1997F00.1 mi23 yd00
Jun 6, 1997F00.2 mi20 yd00
May 18, 1997F19 mi40 yd00
May 18, 1997F13.5 mi100 yd00
May 11, 1997F10.2 mi40 yd00
Mar 20, 1991F01 mi50 yd00
Sep 29, 1990F00.2 mi10 yd00
Aug 14, 1990F00.1 mi10 yd00
Jul 27, 1987F01.5 mi50 yd00
Jul 21, 1986F00.2 mi10 yd00
Aug 1, 1983F00.3 mi30 yd01
Sep 7, 1982F20.5 mi20 yd02
Sep 6, 1976F00.1 mi10 yd00
Sep 6, 1976F00.1 mi10 yd00
Cities

Cities in San Bernardino County

Each city page counts every tornado path within 10 miles of the city, including paths just over the county line.

Nearby

Nearby counties

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Source: NOAA Storm Prediction Center severe weather database, 1950 to 2025, and SPC preliminary reports for 2026. Page built October 13, 2026.