NHC HURDAT2 · SPC Tornado Database
Hurricanes and Tornadoes That Hit Angwin, 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 Angwin, California since records began in 1851. Since 1950, 11 tornadoes have touched down within 25 miles, 0 of them rated EF3 or stronger.
- Hurricanes
- 0
- Tropical storms
- 0
- Tornadoes
- 11
- 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 Angwin
The strongest of the 11 tornadoes within 25 miles was an F2 on June 1, 1958; its path came within 20 miles. Of the 11, none had a path within 5 miles of the city centre, and 3 have come since 2000. December has had the most tornadoes, 5. The most recent tornado was on April 27, 2016. Of the 705 California cities on this site, 55% have more tornadoes within 25 miles than Angwin. Hail has been reported within 10 miles 3 times since 1958, with stones up to 1 inch (quarter size). Of the 705 California cities, 44% have more hail reports within 10 miles than Angwin.
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Tornadoes within 25 miles of Angwin
By decade
- 2010s2
- 2000s1
- 1990s5
- 1980s1
- 1960s1
- 1950s1
| Date | Rating | Distance | Path | Killed / injured |
|---|---|---|---|---|
| Jun 1, 1958 | F2 | 20 mi | 15 mi | 0 / 0 |
| Mar 18, 2011 | EF1 | 16 mi | 0.1 mi | 0 / 0 |
| Dec 5, 1998 | F1 | 16 mi | 1.5 mi | 0 / 0 |
| Feb 22, 1996 | F1 | 15 mi | 1 mi | 0 / 0 |
| Dec 2, 1992 | F1 | 17 mi | 3 mi | 0 / 0 |
| Dec 2, 1992 | F1 | 24 mi | 1 mi | 0 / 0 |
| Dec 2, 1992 | F1 | 20 mi | 7.5 mi | 0 / 0 |
| Feb 27, 1983 | F1 | 16 mi | 0.8 mi | 0 / 0 |
| Nov 10, 1964 | F1 | 19 mi | 1 mi | 0 / 0 |
| Apr 27, 2016 | EF0 | 18 mi | 0.19 mi | 0 / 0 |
| Dec 29, 2004 | F0 | 16 mi | 0.2 mi | 0 / 0 |
The strongest 11 of 11, by rating and then by deaths. Ratings before February 2007 are on the original Fujita scale.
Hail in Angwin
The Storm Prediction Center has 3 hail reports within 10 miles of Angwin since 1958. Of these, one was 1 inch across or larger, and none reached 2 inches. The largest, 1 inch (quarter size), fell on July 28, 1958. The most recent report is from June 11, 2017.
Source: NOAA Storm Prediction Center severe weather reports, data through 2025.
Weather by month in Angwin
The nearest NOAA station with 1991–2020 climate normals is Angwin Pacific Union College, CA, in Angwin at 1,715 feet. July is the warmest, with an average high of 85°F and low of 54°F; December is the coolest, at 53°F and 39°F. December is the wettest at 8.3 inches of precipitation on average and July and August the driest at 0.0 inches; the year adds up to 39.8 inches over 53 days with at least a tenth of an inch. Highs reach 90°F on about 27 days a year, almost all from June to October. Lows fall below freezing on about 15 nights a year. That 39.8 inches is more than at 201 of the 226 California stations used on this site (89%). Saint Helena, 4 miles south, has its own station (Saint Helena, CA): 34.1 inches a year, 5.7 less than here, and a July average high of 89°F against 85°F.
| Month | High °F | Low °F | Precip. in | Days ≥ 0.1" |
|---|---|---|---|---|
| Jan | 54 | 39 | 7.8 | 9 |
| Feb | 56 | 40 | 7.6 | 9 |
| Mar | 60 | 41 | 5.5 | 8 |
| Apr | 66 | 42 | 2.4 | 5 |
| May | 73 | 47 | 1.6 | 3 |
| Jun | 80 | 51 | 0.4 | 1 |
| Jul | 85 | 54 | 0.0 | 0 |
| Aug | 84 | 54 | 0.0 | 0 |
| Sep | 81 | 53 | 0.2 | 1 |
| Oct | 72 | 50 | 1.9 | 3 |
| Nov | 60 | 43 | 4.1 | 6 |
| Dec | 53 | 39 | 8.3 | 9 |
| Year | 69 | 46 | 39.8 | 53 |
Averages for 1991–2020 at Angwin Pacific Union College, CA (1,715 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 Angwin
Since 1996, the National Weather Service has logged 20 flood, rain, thunderstorm wind and lightning events that began within 10 miles of Angwin: 11 floods, 6 heavy rain events, 2 flash floods and 1 thunderstorm wind report. None is recorded as killing or injuring anyone; the NWS estimated $20 in property and crop damage. The strongest thunderstorm gust on record here was 58 mph, on February 19, 2024.
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
Napa County, which includes Angwin, has been named in 39 federal disaster or emergency declarations since 1964, 24 of them major disasters (by incident: 13 fires, 10 severe storms, 8 floods, 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 Napa County a Relatively High rating for natural hazard risk overall; by hazard: Relatively High for inland flooding; Relatively Moderate for coastal flooding; Relatively Low for 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 $186.0 million a year, the 27th highest of 58 California counties; of the hazards above, the largest share, $89.8 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.
Cities near Angwin
- Saint Helena, CA4 mi
- Calistoga, CA9 mi
- Yountville, CA12 mi
- Glen Ellen, CA14 mi
- Santa Rosa, CA16 mi
- Hidden Valley Lake, CA17 mi
- Middletown, CA18 mi
- Napa, CA19 mi
- Windsor, CA19 mi
- Sonoma, CA20 mi
- Rohnert Park, CA20 mi
- Penngrove, CA21 mi
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