San Mateo County tornado history
4 tornadoes touched San Mateo County, California between 1950 and 2025 — about 0.1 a year. The strongest was rated F1 (Mar 20, 2005).
4tornadoes since 1950
F1strongest rating
0killed · 0 injured
3 milongest path · 2005
(E)F0(E)F1(E)F2(E)F3(E)F4(E)F5· dots = start point only
By rating
(E)F02
(E)F12
(E)F20
(E)F30
(E)F40
(E)F50
By month
JFMAMJJASOND
Peak month: March.
By decade
’50’60’70’80’90’00’10’20
Strongest tornadoes
| Date | Rating | Path | Width | Injured | Killed |
|---|
| Mar 20, 2005 | F1 | 3 mi | 30 yd | 0 | 0 |
| Apr 1, 1958 | F1 | 0.2 mi | 67 yd | 0 | 0 |
| Mar 10, 1986 | F0 | 0.2 mi | 50 yd | 0 | 0 |
| Feb 7, 1998 | F0 | 0.2 mi | 50 yd | 0 | 0 |
Most recent tornadoes
| Date | Rating | Path | Width | Injured | Killed |
|---|
| Mar 20, 2005 | F1 | 3 mi | 30 yd | 0 | 0 |
| Feb 7, 1998 | F0 | 0.2 mi | 50 yd | 0 | 0 |
| Mar 10, 1986 | F0 | 0.2 mi | 50 yd | 0 | 0 |
| Apr 1, 1958 | F1 | 0.2 mi | 67 yd | 0 | 0 |
Nearby counties
Questions
How many tornadoes has San Mateo County, California had?
4 tornadoes touched San Mateo County, California between 1950 and 2025 in the NOAA Storm Prediction Center database — about 0.1 per year.
What was the strongest tornado in San Mateo County?
The strongest rating recorded was F1 on Mar 20, 2005, with a 3-mile path.
When is tornado season in San Mateo County?
Most of its tornadoes happened in March (2 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).