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Wind in Lewis County, Idaho
14 damaging wind events in the NCEI Storm Events record, 1950 to 2026. Event types counted: Thunderstorm Wind, High Wind, Strong Wind.
NCEI notes that Storm Data is compiled from a variety of sources including the National Weather Service, other federal, state and local agencies, the media and the public; that property and crop damage figures are estimates; and that some events are recorded by NWS forecast zone rather than by county. FEMA notes that NFIP claim records are redacted and aggregated to protect the privacy of policyholders. Storm records through 30 Jun 2026.
NCEI records 14 wind events in Lewis County, Idaho, between 1950 and 2026, spread over 10 years.
July is the busiest month, with 6 of the recorded events. The last 20 years account for 10 events against 1 in the 20 years before, a change that reflects reporting practice as much as weather.
The county holds 0.4% of the 3,559 wind events recorded in Idaho; its 2.9 per 100 square miles compares with 4.3 statewide.
7 wind reports with a measured or estimated speed reached the 58 mph severe threshold, and 1 reached hurricane force (74 mph).
Compared with Idaho
| Measure | Lewis County | Idaho | US |
|---|---|---|---|
| Wind events since 1950 | 14 | 3,559 | 701,953 |
| Per 100 square miles | 2.9 | 4.3 | 19.9 |
| Per 10,000 residents | 37.7 | 18.7 | 21.1 |
| Deaths recorded | 0 | 25 | 2,166 |
| Busiest month | July | July | June |
By year
Seasonality
0Feb
0Mar
0Apr
1May
0Jun
0Jul
6Aug
4Sep
2Oct
0Nov
1Dec
0
Magnitude distribution
NWS wind thresholds
- under 58 mph
- below severe threshold
- 58–73 mph
- severe
- 74–95 mph
- hurricane-force
- 96 mph and over
- extreme
Wind speed converted from the knots NCEI records; estimated and measured gusts are combined. Events without a speed are not binned.
Recorded events
All 14 events, most recent first. Magnitude is hail size, tornado rating or wind speed as recorded.
| Date | Event type | Magnitude | Property damage | Crop damage | Deaths | Injuries | Geography |
|---|---|---|---|---|---|---|---|
| 24 Jul 2024 | Thunderstorm Wind | 46 mph | $2K | — | — | — | County |
| 12 Aug 2022 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 30 Aug 2017 | Thunderstorm Wind | 81 mph | $20K | — | — | — | County |
| 29 Aug 2017 | Thunderstorm Wind | 70 mph | $1K | — | — | — | County |
| 29 Aug 2017 | Thunderstorm Wind | 70 mph | $50K | — | — | — | County |
| 15 Sep 2013 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 15 Sep 2013 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 17 Jul 2012 | Thunderstorm Wind | 59 mph | — | — | — | — | County |
| 16 Nov 2010 | Thunderstorm Wind | 63 mph | $5K | — | — | — | County |
| 31 Jul 2010 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 4 Apr 2000 | Thunderstorm Wind | 63 mph | $5K | — | — | — | County |
| 24 Jul 1983 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 9 Jul 1971 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 16 Jul 1970 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
Questions and answers
How many wind events has Lewis County had?
14 events in the NCEI Storm Events record between 1950 and 2026. Reporting of damaging wind became far more complete after 1996, so early decades undercount.
When was the last recorded wind event in Lewis County?
24 Jul 2024 (Thunderstorm Wind, 46 mph). Records reach NCEI about 120 days after the month ends.
What was the most damaging wind event recorded in Lewis County?
The thunderstorm wind of 29 Aug 2017, with property damage estimated by NCEI at $50K.
How does Lewis County compare with Idaho for wind?
2.9 events per 100 square miles against 4.3 statewide; the county holds 14 of the state's 3,559 recorded events.
Provenance
NOAA NCEI Storm Events Database, yearly details files through 30 Jun 2026, public domain. County-recorded events plus zone-recorded events whose forecast zone is named for the county (marked "Forecast zone"). Population and area from the US Census Bureau (2021). Built 1 Oct 2026. See the methodology, the Wind hub and the county page.