NHC HURDAT2 · SPC Tornado Database
Hurricanes and Tornadoes That Hit Issaquah, WA
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 Issaquah, Washington since records began in 1851. Since 1950, 5 tornadoes have touched down within 25 miles, 1 of them rated EF3 or stronger.
- Hurricanes
- 0
- Tropical storms
- 0
- Tornadoes
- 5
- EF3 or stronger
- 1
within 75 mi, since 1851
below hurricane strength
within 25 mi, since 1950
no recorded deaths
What the records show for Issaquah
The strongest of the 5 tornadoes within 25 miles was an F3 on December 12, 1969; its path came within 14 miles. Of the 5, one had a path within 5 miles of the city centre, and one has come since 2000. The most recent tornado was on June 11, 2001. Of the 226 Washington cities on this site, 60% have more tornadoes within 25 miles than Issaquah. Hail has been reported within 10 miles once, in 1972, with stones of 1.5 inches (ping pong ball size). Issaquah has more hail reports within 10 miles than 46% of the 226 Washington cities.
Compare Issaquah's storm record with another city →
Tornadoes within 25 miles of Issaquah
By decade
- 2000s1
- 1970s1
- 1960s3(1 EF3+)
| Date | Rating | Distance | Path | Killed / injured |
|---|---|---|---|---|
| Dec 12, 1969 | F3 | 14 mi | 3.8 mi | 0 / 1 |
| Dec 22, 1971 | F1 | 18 mi | 0.5 mi | 0 / 0 |
| Sep 28, 1962 | F1 | 11 mi | 0.1 mi | 0 / 0 |
| Jun 11, 2001 | F0 | 23 mi | — | 0 / 0 |
| Aug 18, 1964 | F0 | in town | 5.2 mi | 0 / 0 |
The strongest 5 of 5, by rating and then by deaths. Ratings before February 2007 are on the original Fujita scale.
Hail in Issaquah
The Storm Prediction Center has one hail report within 10 miles of Issaquah, from June 8, 1972: 1.5 inches (ping pong ball size).
Source: NOAA Storm Prediction Center severe weather reports, data through 2025.
Weather by month in Issaquah
The nearest NOAA station with 1991–2020 climate normals is Snoqualmie Falls, WA, 9 miles east of Issaquah at 440 feet. August is the warmest, with an average high of 77°F and low of 54°F; December is the coolest, at 46°F and 36°F. November is the wettest at 9.5 inches of precipitation on average and July and August the driest at 1.2 inches; the year adds up to 63.1 inches over 125 days with at least a tenth of an inch. Highs reach 90°F on about 3 days a year, almost all from July. Lows fall below freezing on about 54 nights a year. Snowfall averages 3.6 inches a year, most of it in January and December. That 63.1 inches is more than at 70 of the 86 Washington stations used on this site (81%). Bellevue, 7 miles northwest, has its own station (Seattle Sand Pt Wsfo, WA): 38.0 inches a year, 25.1 less than here, and the same August average high, 77°F.
Sea level at the Seattle tide gauge, 15 miles from Issaquah, has risen 0.82 ± 0.03 inches per decade from 1899 to 2025, NOAA's linear trend; at that pace it is 8.2 inches in a hundred years. That is faster than at 42 of the 144 U.S. gauges with a NOAA trend.
| Month | High °F | Low °F | Precip. in | Days ≥ 0.1" | Snow in |
|---|---|---|---|---|---|
| Jan | 46 | 36 | 8.6 | 15 | 1.5 |
| Feb | 50 | 35 | 5.8 | 12 | 0.2 |
| Mar | 54 | 37 | 6.7 | 15 | 0.3 |
| Apr | 59 | 40 | 5.3 | 12 | 0.0 |
| May | 64 | 46 | 4.0 | 10 | 0.0 |
| Jun | 69 | 51 | 3.2 | 8 | 0.0 |
| Jul | 76 | 54 | 1.2 | 3 | 0.0 |
| Aug | 77 | 54 | 1.2 | 3 | 0.0 |
| Sep | 70 | 49 | 3.0 | 7 | 0.0 |
| Oct | 60 | 44 | 6.2 | 12 | 0.0 |
| Nov | 51 | 38 | 9.5 | 15 | 0.1 |
| Dec | 46 | 36 | 8.4 | 14 | 1.5 |
| Year | 60 | 43 | 63.1 | 125 | 3.6 |
Averages for 1991–2020 at Snoqualmie Falls, WA (440 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 Issaquah
Since 1996, the National Weather Service has logged 6 flood, rain, thunderstorm wind and lightning events that began within 10 miles of Issaquah: 2 floods, 2 lightning strikes, 1 heavy rain event and 1 thunderstorm wind report. They killed 1 person and injured 2, and the NWS estimated $11.2 million in property and crop damage. The strongest thunderstorm gust on record here was 62 mph, on December 14, 2010.
January 6, 2022: heavy rain event 7 miles from the centre of Issaquah — 1 killed.
July 31, 2013: lightning strike 2 miles from the centre of Issaquah — 1 injured, $10,000 damage.
NWS: “South of Issaquah, a tree fell and struck a woman standing on her porch. The woman suffered a broken hip.”
July 13, 2012: lightning strike 8 miles from the centre of Issaquah — 1 injured, $1,000 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 Issaquah's 2 ZIP codes have filed 243 claims with the National Flood Insurance Program since 1979, and were paid $5.9 million for buildings and contents, in the dollars of each year. The most came from Flooding in 1990: 114 claims (47% of all) and $2.5 million. 53% of the claims carry the name of a storm or flood event; the rest have no event name. Of the 128 Washington cities on this site with 10 or more claims, 112 have fewer than Issaquah.
| Event | Claims | Paid |
|---|---|---|
| Flooding1990 | 114 | $2.5 million |
King County, which includes Issaquah, has been named in 35 federal disaster or emergency declarations since 1964, 31 of them major disasters (by incident: 17 floods, 11 severe storms, 2 biological emergencies, 2 earthquakes). 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 King County a Very High rating for natural hazard risk overall; by hazard: Very High for inland flooding; Relatively High for heat waves; Relatively Moderate for tornadoes, coastal flooding and lightning; Very Low for hail and strong wind. It models the county's expected loss from all 18 hazards it covers at $1.68 billion a year, the highest of 39 Washington counties; of the hazards above, the largest share, $416.9 million (25%), 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.