NHC HURDAT2 · SPC Tornado Database
Hurricanes and Tornadoes That Hit Ukiah, 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 Ukiah, California since records began in 1851. Since 1950, 1 tornado has touched down within 25 miles, 0 of them rated EF3 or stronger.
- Hurricanes
- 0
- Tropical storms
- 0
- Tornadoes
- 1
- 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 Ukiah
The only tornado within 25 miles was an F0 on December 11, 1983; its path came within 1 mile. Of the 705 California cities on this site, 96% have more tornadoes within 25 miles than Ukiah. Hail has been reported within 10 miles once, in 1982, with stones of 0.75 inches (penny size). Of the 705 California cities, 72% have more hail reports within 10 miles than Ukiah.
Compare Ukiah's storm record with another city →
Tornadoes within 25 miles of Ukiah
By decade
- 1980s1
| Date | Rating | Distance | Path | Killed / injured |
|---|---|---|---|---|
| Dec 11, 1983 | F0 | 1 mi | 2 mi | 0 / 0 |
The strongest 1 of 1, by rating and then by deaths. Ratings before February 2007 are on the original Fujita scale.
Hail in Ukiah
The Storm Prediction Center has one hail report within 10 miles of Ukiah, from September 15, 1982: 0.75 inches (penny size).
Source: NOAA Storm Prediction Center severe weather reports, data through 2025.
Weather by month in Ukiah
The nearest NOAA station with 1991–2020 climate normals is Ukiah, CA, in Ukiah at 636 feet. July is the warmest, with an average high of 91°F and low of 56°F; December is the coolest, at 56°F and 36°F. December is the wettest at 8.0 inches of precipitation on average and July the driest at 0.0 inches; the year adds up to 39.0 inches over 56 days with at least a tenth of an inch. Highs reach 90°F on about 61 days a year, almost all from May to October. Lows fall below freezing on about 34 nights a year. That 39.0 inches is more than at 200 of the 226 California stations used on this site (88%). Redwood Valley, 9 miles north, has its own station (Potter Valley Powerhouse, CA): 45.1 inches a year, 6.1 more than here, and a July average high of 95°F against 91°F.
| Month | High °F | Low °F | Precip. in | Days ≥ 0.1" |
|---|---|---|---|---|
| Jan | 57 | 37 | 7.4 | 9 |
| Feb | 60 | 38 | 7.0 | 10 |
| Mar | 65 | 40 | 5.3 | 8 |
| Apr | 70 | 42 | 2.8 | 6 |
| May | 76 | 47 | 1.7 | 3 |
| Jun | 83 | 52 | 0.4 | 1 |
| Jul | 91 | 56 | 0.0 | 0 |
| Aug | 91 | 54 | 0.1 | 0 |
| Sep | 87 | 51 | 0.2 | 0 |
| Oct | 77 | 46 | 2.0 | 3 |
| Nov | 63 | 40 | 4.1 | 7 |
| Dec | 56 | 36 | 8.0 | 10 |
| Year | 73 | 45 | 39.0 | 56 |
Averages for 1991–2020 at Ukiah, CA (636 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 Ukiah
Since 1996, the National Weather Service has logged 17 flood, rain, thunderstorm wind and lightning events that began within 10 miles of Ukiah: 11 floods, 4 heavy rain events and 2 flash floods. None is recorded as killing or injuring anyone; the NWS estimated $1.7 million in property and crop damage.
February 9, 2017: heavy rain event 8 miles from the centre of Ukiah — $1.7 million damage.
NWS: “Failed culverts, sinks, pushups, and slipouts along Highway 253 between Boonville and Ukiah.”
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
Flood insurance policyholders in Ukiah's ZIP code 95482 have filed 109 claims with the National Flood Insurance Program since 1980, and were paid $1.9 million for buildings and contents, in the dollars of each year. The most came from Flooding in 1995: 20 claims (18% of all) and $43,000, then Pineapple Express - Southern in 1998 with 10. The year with the most claims was 2005, with 55. 28% of the claims carry the name of a storm or flood event; the rest have no event name. Of the 415 California cities on this site with 10 or more claims, 326 have fewer than Ukiah.
| Event | Claims | Paid |
|---|---|---|
| Flooding1995 | 20 | $43,000 |
| Pineapple Express - Southern1998 | 10 | $42,000 |
Mendocino County, which includes Ukiah, has been named in 33 federal disaster or emergency declarations since 1964, 25 of them major disasters (by incident: 11 floods, 9 severe storms, 6 fires, 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 Mendocino County a Relatively High rating for natural hazard risk overall; by hazard: Relatively High for inland flooding; Relatively Low for coastal flooding, lightning and heat waves; Very Low for tornadoes, hail and strong wind. It models the county's expected loss from all 18 hazards it covers at $116.7 million a year, the 35th highest of 58 California counties; of the hazards above, the largest share, $55.9 million (48%), is from inland flooding.
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.