NHC HURDAT2 · SPC Tornado Database
Hurricanes and Tornadoes That Hit Basehor, KS
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 Basehor, Kansas since records began in 1851. Since 1950, 121 tornadoes have touched down within 25 miles, 15 of them rated EF3 or stronger.
- Hurricanes
- 0
- Tropical storms
- 0
- Tornadoes
- 121
- EF3 or stronger
- 15
within 75 mi, since 1851
below hurricane strength
within 25 mi, since 1950
49 deaths in all
What the records show for Basehor
The strongest of the 121 tornadoes within 25 miles was an F5 on May 20, 1957; its path came within 25 miles, and it killed 44 people. Of the 121, 10 had paths within 5 miles of the city centre, and 44 have come since 2000. May has had the most tornadoes, 43. The most recent tornado was on June 3, 2025. Of the 171 Kansas cities on this site, 63% have more tornadoes within 25 miles than Basehor. Hail has been reported within 10 miles 261 times since 1960, with stones up to 3.5 inches. Basehor has more hail reports within 10 miles than 75% of the 171 Kansas cities.
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Tornadoes within 25 miles of Basehor
By decade
- 2020s9
- 2010s9(1 EF3+)
- 2000s26(1 EF3+)
- 1990s13
- 1980s10(1 EF3+)
- 1970s7(1 EF3+)
- 1960s31(9 EF3+)
- 1950s16(2 EF3+)
| Date | Rating | Distance | Path | Killed / injured |
|---|---|---|---|---|
| May 20, 1957 | F5 | 25 mi | 69.4 mi | 44 / 207 |
| May 4, 2003 | F4 | 8 mi | 21 mi | 2 / 30 |
| Jun 8, 1966 | F4 | 6 mi | 19.9 mi | 1 / 2 |
| May 28, 2019 | EF4 | 5 mi | 29.07 mi | 0 / 4 |
| May 7, 1961 | F4 | 2 mi | 26.2 mi | 0 / 12 |
| May 22, 1952 | F4 | 8 mi | 26.9 mi | 0 / 3 |
| Jun 19, 1981 | F3 | 19 mi | 7.7 mi | 1 / 33 |
| Apr 12, 1964 | F3 | 7 mi | 14 mi | 1 / 22 |
| May 4, 1977 | F3 | 17 mi | 31.6 mi | 0 / 1 |
| Jun 26, 1969 | F3 | 17 mi | 10.1 mi | 0 / 5 |
| Apr 19, 1966 | F3 | 17 mi | 7.7 mi | 0 / 4 |
| Apr 10, 1965 | F3 | 21 mi | 23.2 mi | 0 / 11 |
The strongest 12 of 121, by rating and then by deaths. Ratings before February 2007 are on the original Fujita scale.
Hail in Basehor
The Storm Prediction Center has 261 hail reports within 10 miles of Basehor since 1960, made on 145 separate days. Of these, 170 were 1 inch across or larger, and 17 reached 2 inches. The largest, 3.5 inches, fell on March 13, 2024. The most recent report is from October 18, 2025. May has the most reports, 72.
Source: NOAA Storm Prediction Center severe weather reports, data through 2025.
Weather by month in Basehor
The nearest NOAA station with 1991–2020 climate normals is Bonner Springs, KS, 6 miles southeast of Basehor at 850 feet. July is the warmest, with an average high of 87°F and low of 67°F; January is the coolest, at 38°F and 18°F. June is the wettest at 5.5 inches of precipitation on average and January the driest at 1.2 inches; the year adds up to 40.5 inches over 65 days with at least a tenth of an inch. Highs reach 90°F on about 34 days a year, almost all from June to September. Lows fall below freezing on about 127 nights a year. Snowfall averages 17.4 inches a year, most of it in February. That 40.5 inches is more than at 82 of the 103 Kansas stations used on this site (80%). Tonganoxie, 8 miles west, has its own station (Lawrence Municipal Airport, KS): 35.6 inches a year, 4.9 less than here, and a July average high of 91°F against 87°F.
| Month | High °F | Low °F | Precip. in | Days ≥ 0.1" | Snow in |
|---|---|---|---|---|---|
| Jan | 38 | 18 | 1.2 | 3 | 5.0 |
| Feb | 43 | 22 | 1.6 | 4 | 5.1 |
| Mar | 55 | 31 | 2.5 | 5 | 1.5 |
| Apr | 65 | 42 | 4.0 | 7 | 0.1 |
| May | 73 | 53 | 5.2 | 9 | 0.0 |
| Jun | 83 | 64 | 5.5 | 7 | 0.0 |
| Jul | 87 | 67 | 4.5 | 6 | 0.0 |
| Aug | 86 | 65 | 4.5 | 6 | 0.0 |
| Sep | 78 | 57 | 4.3 | 6 | 0.0 |
| Oct | 67 | 44 | 3.4 | 5 | 0.3 |
| Nov | 54 | 32 | 2.2 | 4 | 1.1 |
| Dec | 42 | 22 | 1.6 | 3 | 4.3 |
| Year | 64 | 43 | 40.5 | 65 | 17.4 |
Averages for 1991–2020 at Bonner Springs, KS (850 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 Basehor
Since 1996, the National Weather Service has logged 252 flood, rain, thunderstorm wind and lightning events that began within 10 miles of Basehor: 196 thunderstorm wind reports, 40 flash floods, 13 floods, 2 lightning strikes and 1 heavy rain event. They killed 0 people and injured 1, and the NWS estimated $3.6 million in property and crop damage. The strongest thunderstorm gust on record here was 81 mph, on June 29, 1998. June has had the most flash floods, 11 of 40. Of the 169 Kansas cities on this site with a flash flood on record, 144 have had fewer than Basehor.
June 2, 2008: lightning strike 1 mile from the centre of Basehor — 1 injured.
NWS: “A 36 year old female was standing in the doorway of her home, when lightning struck nearby. She was transported to the hospital complaining of deafness.”
October 2, 2005: flood 4 miles from the centre of Basehor — $3.1 million damage.
March 12, 2006: thunderstorm wind 8 miles from the centre of Basehor — $150,000 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
Leavenworth County, which includes Basehor, has been named in 23 federal disaster or emergency declarations since 1967, 18 of them major disasters (by incident: 12 severe storms, 5 floods, 2 biological emergencies, 2 tornadoes). The latest major disaster declaration was Covid-19 Pandemic, on March 29, 2020. FEMA's National Risk Index gives Leavenworth County a Relatively Low rating for natural hazard risk overall; by hazard: Relatively High for strong wind; Relatively Moderate for tornadoes, hail, lightning and heat waves; Relatively Low for inland flooding. It models the county's expected loss from all 18 hazards it covers at $34.5 million a year, the 8th highest of 105 Kansas counties; of the hazards above, the largest share, $13.0 million (38%), 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 Basehor
- Bonner Springs, KS6 mi
- Tonganoxie, KS8 mi
- Lansing, KS8 mi
- Leavenworth, KS11 mi
- Linwood, KS11 mi
- De Soto, KS13 mi
- Shawnee, KS13 mi
- Kansas City, KS13 mi
- Parkville, MO14 mi
- Fort Leavenworth, KS14 mi
- Mc Louth, KS14 mi
- Lenexa, KS15 mi
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