NHC HURDAT2 · SPC Tornado Database
Hurricanes and Tornadoes That Hit Hillsboro, 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 Hillsboro, Oregon since records began in 1851. Since 1950, 26 tornadoes have touched down within 25 miles, 1 of them rated EF3 or stronger.
- Hurricanes
- 0
- Tropical storms
- 0
- Tornadoes
- 26
- EF3 or stronger
- 1
within 75 mi, since 1851
below hurricane strength
within 25 mi, since 1950
6 deaths in all
What the records show for Hillsboro
The strongest of the 26 tornadoes within 25 miles was an F3 on April 5, 1972; its path came within 17 miles, and it killed 6 people. Of the 26, none had a path within 5 miles of the city centre, and 18 have come since 2000. October has had the most tornadoes, 8. The most recent tornado was on October 24, 2022. Hillsboro has more tornadoes within 25 miles than 92% of the 149 Oregon cities on this site. Hail has been reported within 10 miles 4 times since 1963, with stones up to 1 inch (quarter size). Hillsboro has more hail reports within 10 miles than 63% of the 149 Oregon cities.
Compare Hillsboro's storm record with another city →
Tornadoes within 25 miles of Hillsboro
By decade
- 2020s4
- 2010s8
- 2000s6
- 1990s4
- 1970s3(1 EF3+)
- 1960s1
| Date | Rating | Distance | Path | Killed / injured |
|---|---|---|---|---|
| Apr 5, 1972 | F3 | 17 mi | 8.7 mi | 6 / 300 |
| Dec 8, 1993 | F2 | 8 mi | 6 mi | 0 / 0 |
| Jun 13, 2013 | EF1 | 24 mi | 0.25 mi | 0 / 0 |
| Jan 10, 2008 | EF1 | 17 mi | 10.11 mi | 0 / 0 |
| Oct 9, 2000 | F1 | 23 mi | 0.1 mi | 0 / 0 |
| Nov 12, 1991 | F1 | 13 mi | 0.2 mi | 0 / 0 |
| Aug 16, 1978 | F1 | 18 mi | 0.2 mi | 0 / 0 |
| Oct 24, 2022 | EF0 | 25 mi | 0.04 mi | 0 / 0 |
| Sep 27, 2021 | EF0 | 25 mi | 3.9 mi | 0 / 0 |
| Nov 10, 2020 | EF0 | 24 mi | 1.7 mi | 0 / 0 |
| Jun 13, 2020 | EF0 | 25 mi | 2 mi | 0 / 0 |
| Sep 8, 2019 | EF0 | 7 mi | 0.11 mi | 0 / 0 |
The strongest 12 of 26, by rating and then by deaths. Ratings before February 2007 are on the original Fujita scale.
Hail in Hillsboro
The Storm Prediction Center has 4 hail reports within 10 miles of Hillsboro since 1963. Of these, 2 were 1 inch across or larger, and none reached 2 inches. The largest size, 1 inch (quarter size), was reported on 2 days, most recently May 25, 1998. The most recent report is from June 20, 2018.
Source: NOAA Storm Prediction Center severe weather reports, data through 2025.
Weather by month in Hillsboro
The nearest NOAA station with 1991–2020 climate normals is Portland-Hillsboro Airport, OR, 1 mile north of Hillsboro at 204 feet. July is the warmest, with an average high of 82°F and low of 52°F; December is the coolest, at 46°F and 33°F. December is the wettest at 6.1 inches of precipitation on average and July the driest at 0.4 inches; the year adds up to 36.1 inches over 88 days with at least a tenth of an inch. Highs reach 90°F on about 17 days a year, almost all from June to September. Lows fall below freezing on about 64 nights a year. That 36.1 inches is more than at 28 of the 77 Oregon stations used on this site (36%). Cornelius, 5 miles west, has its own station (Forest Grove, OR): 46.6 inches a year, 10.5 more than here, and a July average high of 81°F against 82°F.
Sea level at the Garibaldi tide gauge, 47 miles from Hillsboro, has risen 0.96 ± 0.12 inches per decade from 1970 to 2025, NOAA's linear trend; at that pace it is 9.6 inches in a hundred years. That is faster than at 56 of the 144 U.S. gauges with a NOAA trend.
| Month | High °F | Low °F | Precip. in | Days ≥ 0.1" |
|---|---|---|---|---|
| Jan | 47 | 34 | 5.3 | 12 |
| Feb | 51 | 34 | 4.0 | 10 |
| Mar | 56 | 37 | 3.7 | 11 |
| Apr | 61 | 39 | 2.6 | 8 |
| May | 69 | 45 | 2.0 | 6 |
| Jun | 74 | 49 | 1.3 | 4 |
| Jul | 82 | 52 | 0.4 | 1 |
| Aug | 82 | 52 | 0.5 | 1 |
| Sep | 76 | 48 | 1.4 | 3 |
| Oct | 64 | 41 | 3.4 | 8 |
| Nov | 53 | 37 | 5.4 | 11 |
| Dec | 46 | 33 | 6.1 | 13 |
| Year | 63 | 42 | 36.1 | 88 |
Averages for 1991–2020 at Portland-Hillsboro Airport, OR (204 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 Hillsboro
Since 1996, the National Weather Service has logged 35 flood, rain, thunderstorm wind and lightning events that began within 10 miles of Hillsboro: 23 floods, 8 heavy rain events, 3 lightning strikes and 1 thunderstorm wind report. They killed 2 people and injured 0, and the NWS estimated $3.0 million in property and crop damage. The strongest thunderstorm gust on record here was 54 mph, on March 1, 2016.
December 3, 2007: flood 9 miles from the centre of Hillsboro — 1 killed, $2.3 million damage.
December 4, 2023: flood 3 miles from the centre of Hillsboro — 1 killed.
NWS: “A male age 53, drowned in Bronson Creek, SE of Hillsboro.”
December 9, 2015: flood 9 miles from the centre of Hillsboro — $283,000 damage.
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 Hillsboro's 2 ZIP codes have filed 33 claims with the National Flood Insurance Program since 1987, and were paid $443,000 for buildings and contents, in the dollars of each year. The most came from Flooding in 1996: 24 claims (73% of all) and $381,000. 76% of the claims carry the name of a storm or flood event; the rest have no event name. Of the 77 Oregon cities on this site with 10 or more claims, 41 have fewer than Hillsboro.
| Event | Claims | Paid |
|---|---|---|
| Flooding1996 | 24 | $381,000 |
Washington County, which includes Hillsboro, has been named in 17 federal disaster or emergency declarations since 1964, 11 of them major disasters (by incident: 5 fires, 4 floods, 4 severe storms, 2 biological emergencies). The latest major disaster declaration was Wildfires and Straight-Line Winds, on September 15, 2020. FEMA's National Risk Index gives Washington County a Relatively High rating for natural hazard risk overall; by hazard: Relatively High for inland flooding and heat waves; Relatively Moderate for strong wind and lightning; Relatively Low for tornadoes; Very Low for hail. It models the county's expected loss from all 18 hazards it covers at $270.3 million a year, the 2nd highest of 36 Oregon counties; of the hazards above, the largest share, $80.6 million (30%), 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.