NHC HURDAT2 · SPC Tornado Database
Hurricanes and Tornadoes That Hit Herlong, 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 Herlong, 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 Herlong
The only tornado within 25 miles was an EF0 on July 20, 2015; its path came within 17 miles. Of the 705 California cities on this site, 96% have more tornadoes within 25 miles than Herlong.
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Tornadoes within 25 miles of Herlong
By decade
- 2010s1
| Date | Rating | Distance | Path | Killed / injured |
|---|---|---|---|---|
| Jul 20, 2015 | EF0 | 17 mi | 3.15 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 Herlong
The Storm Prediction Center has no hail reports within 10 miles of Herlong since 1955.
Source: NOAA Storm Prediction Center severe weather reports, data through 2025.
Weather by month in Herlong
The nearest NOAA station with 1991–2020 climate normals is Doyle 4 SSE, CA, 14 miles southeast of Herlong at 4,390 feet. July is the warmest, with an average high of 88°F and low of 51°F; December is the coolest, at 42°F and 24°F. December is the wettest at 2.5 inches of precipitation on average and July the driest at 0.2 inches; the year adds up to 14.4 inches over 30 days with at least a tenth of an inch. Highs reach 90°F on about 30 days a year, almost all from June to September. Lows fall below freezing on about 140 nights a year. Snowfall averages 25.6 inches a year, most of it in December. That 14.4 inches is more than at 97 of the 226 California stations used on this site (43%). Portola, 29 miles southwest, has its own station (Portola, CA): 23.4 inches a year, 9.0 more than here, and a July average high of 86°F against 88°F.
| Month | High °F | Low °F | Precip. in | Days ≥ 0.1" | Snow in |
|---|---|---|---|---|---|
| Jan | 43 | 24 | 2.1 | 3 | 5.9 |
| Feb | 49 | 27 | 1.8 | 3 | 4.0 |
| Mar | 56 | 31 | 1.8 | 3 | 3.6 |
| Apr | 62 | 34 | 0.9 | 3 | 1.6 |
| May | 70 | 40 | 1.1 | 3 | 0.0 |
| Jun | 79 | 45 | 0.6 | 2 | 0.0 |
| Jul | 88 | 51 | 0.2 | 1 | 0.0 |
| Aug | 87 | 49 | 0.3 | 1 | 0.0 |
| Sep | 80 | 44 | 0.4 | 1 | 0.1 |
| Oct | 67 | 36 | 1.0 | 2 | 0.1 |
| Nov | 52 | 28 | 1.7 | 3 | 2.1 |
| Dec | 42 | 24 | 2.5 | 4 | 8.2 |
| Year | 64 | 36 | 14.4 | 30 | 25.6 |
Averages for 1991–2020 at Doyle 4 SSE, CA (4,390 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 Herlong
Since 1996, the National Weather Service has logged 10 flood, rain, thunderstorm wind and lightning events that began within 10 miles of Herlong: 7 heavy rain events, 2 thunderstorm wind reports and 1 flood. The strongest thunderstorm gust on record here was 66 mph, on May 25, 2015.
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
Lassen County, which includes Herlong, has been named in 19 federal disaster or emergency declarations since 1964, 13 of them major disasters (by incident: 5 fires, 5 floods, 5 severe storms, 2 biological emergencies). The latest major disaster declaration was Wildfires, on August 24, 2021. FEMA's National Risk Index gives Lassen County a Relatively Low rating for natural hazard risk overall; by hazard: Relatively Moderate for inland flooding; Relatively Low for lightning; Very Low for tornadoes, hail, strong wind and heat waves. It models the county's expected loss from all 18 hazards it covers at $25.4 million a year, the 54th highest of 58 California counties; of the hazards above, the largest share, $12.6 million (50%), 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 Herlong
- Portola, CA29 mi
- Verdi, NV45 mi
- Sun Valley, NV45 mi
- Sparks, NV47 mi
- Reno, NV49 mi
- Truckee, CA57 mi
- Kings Beach, CA64 mi
- Incline Village, NV64 mi
- Washoe Valley, NV65 mi
- Fernley, NV65 mi
- Tahoe City, CA68 mi
- Dayton, NV72 mi
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