NHC HURDAT2 · SPC Tornado Database
Hurricanes and Tornadoes That Hit Mill City, 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 Mill City, Oregon since records began in 1851. Since 1950, 9 tornadoes have touched down within 25 miles, 0 of them rated EF3 or stronger.
- Hurricanes
- 0
- Tropical storms
- 0
- Tornadoes
- 9
- 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 Mill City
The strongest of the 9 tornadoes within 25 miles was an EF2 on December 14, 2010; its path came within 19 miles. Of the 9, none had a path within 5 miles of the city centre, and 4 have come since 2000. The most recent tornado was on October 29, 2018. Of the 149 Oregon cities on this site, 50% have more tornadoes within 25 miles than Mill City.
Compare Mill City's storm record with another city →
Tornadoes within 25 miles of Mill City
By decade
- 2010s3
- 2000s1
- 1990s4
- 1960s1
| Date | Rating | Distance | Path | Killed / injured |
|---|---|---|---|---|
| Dec 14, 2010 | EF2 | 19 mi | 5 mi | 0 / 2 |
| Sep 19, 2017 | EF1 | 15 mi | 0.69 mi | 0 / 0 |
| Mar 8, 1960 | F1 | 20 mi | 1 mi | 0 / 0 |
| Oct 29, 2018 | EF0 | 24 mi | 0.1 mi | 0 / 0 |
| Sep 28, 2007 | EF0 | 24 mi | 1 mi | 0 / 0 |
| Oct 3, 1998 | F0 | 23 mi | 0.1 mi | 0 / 0 |
| Sep 17, 1997 | F0 | 22 mi | 0.5 mi | 0 / 0 |
| Sep 17, 1997 | F0 | 25 mi | 1 mi | 0 / 0 |
| Nov 12, 1991 | F0 | 21 mi | 0.1 mi | 0 / 0 |
The strongest 9 of 9, by rating and then by deaths. Ratings before February 2007 are on the original Fujita scale.
Hail in Mill City
The Storm Prediction Center has no hail reports within 10 miles of Mill City since 1955.
Source: NOAA Storm Prediction Center severe weather reports, data through 2025.
Weather by month in Mill City
The nearest NOAA station with 1991–2020 climate normals is Detroit Dam, OR, 11 miles east of Mill City at 1,220 feet. August is the warmest, with an average high of 81°F and low of 56°F; January is the coolest, at 43°F and 36°F. December is the wettest at 15.4 inches of precipitation on average and July the driest at 0.7 inches; the year adds up to 93.5 inches over 137 days with at least a tenth of an inch. Highs reach 90°F on about 13 days a year, almost all from June to September. Lows fall below freezing on about 46 nights a year. Snowfall averages 10.2 inches a year, most of it in January. That 93.5 inches is more than at 74 of the 77 Oregon stations used on this site (96%). Lyons, 4 miles northwest, has its own station (Silver Creek Falls, OR): 69.0 inches a year, 24.5 less than here, and an August average high of 76°F against 81°F.
| Month | High °F | Low °F | Precip. in | Days ≥ 0.1" | Snow in |
|---|---|---|---|---|---|
| Jan | 43 | 36 | 13.1 | 17 | 5.6 |
| Feb | 47 | 37 | 10.0 | 15 | 2.2 |
| Mar | 52 | 38 | 10.7 | 17 | 0.9 |
| Apr | 57 | 41 | 8.6 | 16 | 0.0 |
| May | 65 | 46 | 6.0 | 12 | 0.0 |
| Jun | 71 | 51 | 3.8 | 8 | 0.0 |
| Jul | 80 | 56 | 0.7 | 2 | 0.0 |
| Aug | 81 | 56 | 0.9 | 2 | 0.0 |
| Sep | 74 | 53 | 2.8 | 5 | 0.0 |
| Oct | 61 | 47 | 8.0 | 11 | 0.0 |
| Nov | 49 | 40 | 13.5 | 16 | 0.2 |
| Dec | 43 | 37 | 15.4 | 17 | 1.3 |
| Year | 60 | 45 | 93.5 | 137 | 10.2 |
Averages for 1991–2020 at Detroit Dam, OR (1,220 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
Linn County, which includes Mill City, has been named in 21 federal disaster or emergency declarations since 1964, 16 of them major disasters (by incident: 9 severe storms, 5 floods, 4 fires, 2 biological emergencies). The latest major disaster declaration was Severe Storms, Straight-Line Winds, Flooding, Landslides, and Mudslides, on April 7, 2026. FEMA's National Risk Index gives Linn County a Relatively Moderate rating for natural hazard risk overall; by hazard: Relatively High for strong wind; Relatively Moderate for inland flooding, lightning and heat waves; Very Low for tornadoes and hail. It models the county's expected loss from all 18 hazards it covers at $71.1 million a year, the 10th highest of 36 Oregon counties; of the hazards above, the largest share, $27.5 million (39%), 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 Mill City
- Lyons, OR4 mi
- Stayton, OR14 mi
- Sublimity, OR16 mi
- Scio, OR17 mi
- Aumsville, OR20 mi
- Silverton, OR23 mi
- Turner, OR23 mi
- Lebanon, OR24 mi
- Molalla, OR25 mi
- Mount Angel, OR27 mi
- Jefferson, OR27 mi
- Sweet Home, OR28 mi
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