NHC HURDAT2 · SPC Tornado Database
Hurricanes and Tornadoes That Hit Mariposa, CA
Every tropical system within 75 miles since 1851 and every tornado within 25 miles since 1950.
Data: NOAA NHC HURDAT2 and NOAA SPC tornado and hail reports, through 2025 · Updated
No tropical storm or hurricane has passed within 75 miles of Mariposa, California since records began in 1851. Since 1950, 5 tornadoes have touched down within 25 miles, 0 of them rated EF3 or stronger.
- Hurricanes
- 0
- Tropical storms
- 0
- Tornadoes
- 5
- EF3 or stronger
- 0
within 75 mi, since 1851
below hurricane strength
within 25 mi, since 1950
no recorded deaths
What the records show for Mariposa
The highest rating among the 5 tornadoes within 25 miles is F0 or EF0, reached 5 times; the most recent, on February 15, 2019, came within 24 miles. Of the 5, none had a path within 5 miles of the city centre, and 3 have come since 2000. Of the 705 California cities on this site, 79% have more tornadoes within 25 miles than Mariposa. Hail has been reported within 10 miles once, in 2010, with stones of 1.25 inches (half dollar size). Of the 705 California cities, 72% have more hail reports within 10 miles than Mariposa.
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Tornadoes within 25 miles of Mariposa
By decade
- 2010s2
- 2000s1
- 1970s1
- 1950s1
| Date | Rating | Distance | Path | Killed / injured |
|---|---|---|---|---|
| Feb 15, 2019 | EF0 | 24 mi | 0.56 mi | 0 / 0 |
| Feb 2, 2019 | EF0 | 10 mi | 0.19 mi | 0 / 0 |
| Jan 14, 2006 | F0 | 20 mi | 0.1 mi | 0 / 0 |
| Oct 15, 1972 | F0 | 21 mi | 0.1 mi | 0 / 0 |
| Apr 18, 1955 | F0 | 23 mi | 0.1 mi | 0 / 0 |
The strongest 5 of 5, by rating and then by deaths. Ratings before February 2007 are on the original Fujita scale.
Hail in Mariposa
The Storm Prediction Center has one hail report within 10 miles of Mariposa, from October 4, 2010: 1.25 inches (half dollar size).
Source: NOAA Storm Prediction Center severe weather reports, data through 2025.
Weather by month in Mariposa
The nearest NOAA station with 1991–2020 climate normals is So Entrance Yosemite Np, CA, 16 miles east of Mariposa at 5,047 feet. July is the warmest, with an average high of 80°F and low of 51°F; December is the coolest, at 44°F and 26°F. January is the wettest at 7.6 inches of precipitation on average and August the driest at 0.1 inches; the year adds up to 37.2 inches over 47 days with at least a tenth of an inch. Highs reach 90°F on about 3 days a year, almost all from July. Lows fall below freezing on about 159 nights a year. That 37.2 inches is more than at 195 of the 226 California stations used on this site (86%). Yosemite National Park, 19 miles northeast, has its own station (Yosemite Park Hq, CA): 36.8 inches a year, 0.4 less than here, and a July average high of 89°F against 80°F.
| Month | High °F | Low °F | Precip. in | Days ≥ 0.1" |
|---|---|---|---|---|
| Jan | 45 | 27 | 7.6 | 8 |
| Feb | 46 | 27 | 6.7 | 7 |
| Mar | 50 | 28 | 5.2 | 8 |
| Apr | 55 | 31 | 3.4 | 5 |
| May | 63 | 37 | 1.9 | 4 |
| Jun | 73 | 44 | 0.5 | 1 |
| Jul | 80 | 51 | 0.2 | 0 |
| Aug | 80 | 49 | 0.1 | 0 |
| Sep | 75 | 45 | 0.5 | 1 |
| Oct | 64 | 37 | 2.2 | 3 |
| Nov | 53 | 30 | 3.3 | 4 |
| Dec | 44 | 26 | 5.6 | 7 |
| Year | 61 | 36 | 37.2 | 47 |
Averages for 1991–2020 at So Entrance Yosemite Np, CA (5,047 ft), from NOAA NCEI U.S. Climate Normals. Normals describe the station; the farther a place is from it, and the bigger the difference in height, the more its weather can differ.
Floods, thunderstorm wind and lightning near Mariposa
Since 1996, the National Weather Service has logged 66 flood, rain, thunderstorm wind and lightning events that began within 10 miles of Mariposa: 55 floods, 5 heavy rain events, 4 thunderstorm wind reports and 2 flash floods. They killed 1 person and injured 2, and the NWS estimated $21.0 million in property and crop damage. The strongest thunderstorm gust on record here was 70 mph, on October 29, 2007.
February 21, 2005: flood 5 miles from the centre of Mariposa — 1 killed, $75,000 damage.
NWS: “46 feet at 5:15 PM that evening, and fell back below flood stage an hour later. The river washed out a low water crossing in the Mission Valley area and caused flooding in the typical trouble spots around the Fashion Valley Mall.”
January 9, 2005: flood 5 miles from the centre of Mariposa — 2 injured, $10,000 damage.
January 9, 2005: flood 5 miles from the centre of Mariposa — $20.5 million damage.
Source: NOAA NCEI Storm Events Database, events whose starting point is on record, 1996 to June 30, 2026. Damage is the NWS estimate in the dollars of the year, not insured losses, and NWS notes that some reports are unverified.
Flood insurance claims, disaster declarations and FEMA risk ratings
Mariposa County, which includes Mariposa, has been named in 24 federal disaster or emergency declarations since 1969, 10 of them major disasters (by incident: 9 fires, 5 floods, 5 severe storms, 2 biological emergencies). The latest major disaster declaration was Severe Winter Storms, Straight-Line Winds, Flooding, Landslides, and Mudslides, on April 3, 2023. FEMA's National Risk Index gives Mariposa County a Relatively Moderate rating for natural hazard risk overall; by hazard: Relatively High for heat waves; Relatively Moderate for lightning; Relatively Low for inland flooding; Very Low for tornadoes, hail and strong wind. It models the county's expected loss from all 18 hazards it covers at $38.1 million a year, the 51st highest of 58 California counties; of the hazards above, the largest share, $11.2 million (29%), is from heat waves.
Claims: FEMA, OpenFEMA Dataset FIMA NFIP Redacted Claims – v3, summed over ZIP codes; payments in the dollars of each year, not adjusted for inflation. Declarations: Disaster Declarations Summaries – v2, by county. Retrieved October 25, 2026. This product uses the Federal Emergency Management Agency's OpenFEMA API, but is not endorsed by FEMA. The Federal Government or FEMA cannot vouch for the data or analyses derived from these data after the data have been retrieved from the Agency's website(s).
Risk ratings: FEMA, National Risk Index county table, December 2025 (v1.20), retrieved October 26, 2026; ratings compare counties nationwide, are meant for planning and are no substitute for a local risk assessment. This product uses the Federal Emergency Management Agency's National Risk Index dataset API or downloadable datasets but is not endorsed by FEMA. The Federal Government or FEMA cannot vouch for the data or analyses derived from these data after the data have been retrieved from the Agency's website(s).
What counts as a pass, the distances and the sources: how this storm history is built.
Cities near Mariposa
- Yosemite National Park, CA19 mi
- Coulterville, CA21 mi
- Oakhurst, CA21 mi
- Coarsegold, CA24 mi
- Groveland, CA24 mi
- Planada, CA26 mi
- Le Grand, CA26 mi
- North Fork, CA29 mi
- La Grange, CA30 mi
- Chowchilla, CA34 mi
- Tuolumne, CA35 mi
- Friant, CA36 mi
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