NHC HURDAT2 · SPC Tornado Database
Hurricanes and Tornadoes That Hit Bonanza, OR
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 Bonanza, Oregon since records began in 1851. Since 1950, 3 tornadoes have touched down within 25 miles, 0 of them rated EF3 or stronger.
- Hurricanes
- 0
- Tropical storms
- 0
- Tornadoes
- 3
- 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 Bonanza
The strongest of the 3 tornadoes within 25 miles was an F1 on May 22, 1958; its path came within 19 miles. The most recent tornado was on April 17, 2004. Of the 149 Oregon cities on this site, 85% have more tornadoes within 25 miles than Bonanza. Hail has been reported within 10 miles once, in 2007, with stones of 0.88 inches (nickel size). Of the 149 Oregon cities, 57% have more hail reports within 10 miles than Bonanza.
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Tornadoes within 25 miles of Bonanza
By decade
- 2000s1
- 1990s1
- 1950s1
| Date | Rating | Distance | Path | Killed / injured |
|---|---|---|---|---|
| May 22, 1958 | F1 | 19 mi | 2.7 mi | 0 / 0 |
| Apr 17, 2004 | F0 | 21 mi | 0.2 mi | 0 / 0 |
| May 30, 1995 | F0 | 22 mi | 0.1 mi | 0 / 0 |
The strongest 3 of 3, by rating and then by deaths. Ratings before February 2007 are on the original Fujita scale.
Hail in Bonanza
The Storm Prediction Center has one hail report within 10 miles of Bonanza, from July 6, 2007: 0.88 inches (nickel size).
Source: NOAA Storm Prediction Center severe weather reports, data through 2025.
Weather by month in Bonanza
The nearest NOAA station with 1991–2020 climate normals is Tulelake, CA, 18 miles southwest of Bonanza at 4,038 feet. July is the warmest, with an average high of 86°F and low of 47°F; December is the coolest, at 41°F and 20°F. December is the wettest at 1.5 inches of precipitation on average and July the driest at 0.2 inches; the year adds up to 10.7 inches over 34 days with at least a tenth of an inch. Highs reach 90°F on about 20 days a year, almost all from June to September. Lows fall below freezing on about 182 nights a year. Snowfall averages 22.8 inches a year, most of it in January. That 10.7 inches is more than at 12 of the 77 Oregon stations used on this site (16%). Klamath Falls, 23 miles west, has its own station (Klamath Falls International Airport, OR): 11.1 inches a year, 0.4 more than here, and the same July average high, 86°F.
| Month | High °F | Low °F | Precip. in | Days ≥ 0.1" | Snow in |
|---|---|---|---|---|---|
| Jan | 42 | 21 | 1.3 | 4 | 6.2 |
| Feb | 47 | 23 | 1.1 | 3 | 4.0 |
| Mar | 53 | 26 | 1.2 | 4 | 2.8 |
| Apr | 59 | 30 | 1.0 | 3 | 1.6 |
| May | 69 | 37 | 1.1 | 4 | 0.1 |
| Jun | 77 | 42 | 0.8 | 2 | 0.0 |
| Jul | 86 | 47 | 0.2 | 1 | 0.0 |
| Aug | 86 | 44 | 0.3 | 1 | 0.0 |
| Sep | 79 | 38 | 0.4 | 1 | 0.0 |
| Oct | 66 | 30 | 0.7 | 2 | 0.1 |
| Nov | 50 | 25 | 1.1 | 4 | 3.0 |
| Dec | 41 | 20 | 1.5 | 4 | 5.0 |
| Year | 63 | 32 | 10.7 | 34 | 22.8 |
Averages for 1991–2020 at Tulelake, CA (4,038 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.
Flood insurance claims, disaster declarations and FEMA risk ratings
Klamath County, which includes Bonanza, has been named in 18 federal disaster or emergency declarations since 1964, 5 of them major disasters (by incident: 11 fires, 2 biological emergencies, 1 coastal storm, 1 drought). The latest major disaster declaration was Wildfires and Straight-Line Winds, on September 15, 2020. FEMA's National Risk Index gives Klamath County a Relatively Low rating for natural hazard risk overall; by hazard: Relatively Moderate for inland 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 $32.5 million a year, the 21st highest of 36 Oregon counties; of the hazards above, the largest share, $15.5 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 Bonanza
- Klamath Falls, OR23 mi
- Tulelake, CA23 mi
- Chiloquin, OR37 mi
- Glide, OR112 mi
- Myrtle Creek, OR113 mi
- Riddle, OR117 mi
- Shingletown, CA120 mi
- Palo Cedro, CA122 mi
- Winston, OR123 mi
- Redding, CA124 mi
- Bend, OR127 mi
- Roseburg, OR128 mi
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