Lassen County tornado history
4 tornadoes touched Lassen County, California between 1950 and 2025 — about 0.1 a year. The strongest was rated EF1 (Aug 15, 2020).
4tornadoes since 1950
EF1strongest rating
0killed · 0 injured
3.2 milongest path · 2020
(E)F0(E)F1(E)F2(E)F3(E)F4(E)F5· dots = start point only
By rating
(E)F01
(E)F12
(E)F20
(E)F30
(E)F40
(E)F50
unrated1
By month
JFMAMJJASOND
Peak month: August.
By decade
’50’60’70’80’90’00’10’20
Strongest tornadoes
| Date | Rating | Path | Width | Injured | Killed |
|---|
| Aug 15, 2020 | EF1 | 0.4 mi | 137 yd | 0 | 0 |
| Aug 15, 2020 | EF1 | 0.1 mi | 20 yd | 0 | 0 |
| Jul 20, 2015 | EF0 | 3.1 mi | 20 yd | 0 | 0 |
| Aug 15, 2020 | unrated | 3.2 mi | 156 yd | 0 | 0 |
Most recent tornadoes
| Date | Rating | Path | Width | Injured | Killed |
|---|
| Aug 15, 2020 | EF1 | 0.4 mi | 137 yd | 0 | 0 |
| Aug 15, 2020 | EF1 | 0.1 mi | 20 yd | 0 | 0 |
| Aug 15, 2020 | unrated | 3.2 mi | 156 yd | 0 | 0 |
| Jul 20, 2015 | EF0 | 3.1 mi | 20 yd | 0 | 0 |
Nearby counties
Questions
How many tornadoes has Lassen County, California had?
4 tornadoes touched Lassen County, California between 1950 and 2025 in the NOAA Storm Prediction Center database — about 0.1 per year.
What was the strongest tornado in Lassen County?
The strongest rating recorded was EF1 on Aug 15, 2020, with a 0.4-mile path.
When is tornado season in Lassen County?
Most of its tornadoes happened in August (3 of 4). Tornadoes can occur in any month, so keep alerts on year-round.
Right now: live tornado warnings map · alerts for your location. Dates link to that day’s full storm reports where available (2004 onward).