NHC HURDAT2 · SPC Tornado Database
Hurricanes and Tornadoes That Hit Leonard, MI
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
6 tropical systems have passed within 75 miles of Leonard, Michigan since 1851, 0 of them at hurricane strength; the most recent was Ike in 2008. Since 1950, 76 tornadoes have touched down within 25 miles, 7 of them rated EF3 or stronger.
- Hurricanes
- 0
- Tropical storms
- 6
- Tornadoes
- 76
- EF3 or stronger
- 7
within 75 mi, since 1851
below hurricane strength
within 25 mi, since 1950
17 deaths in all
What the records show for Leonard
None of the 6 tropical systems was at hurricane strength as it passed Leonard; the strongest was an unnamed storm in 1900, a tropical storm with 64 mph winds when its centre passed 51 miles away. The record near Leonard begins with an unnamed storm in 1892; the most recent system was Ike in 2008, a tropical storm 23 miles away. Of the 6 systems, one has come since 2000. Leonard has more tropical storms and hurricanes within 75 miles than 76% of the 546 Michigan cities on this site. The highest rating among the 76 tornadoes within 25 miles is F4, reached 5 times; the most recent, on March 20, 1976, came within 22 miles. The deadliest, an F4 on May 8, 1964, killed 11 people. Of the 76, one had a path within 5 miles of the city centre, and 22 have come since 2000. June and July have had the most tornadoes, 16 each. The most recent tornado was on June 18, 2025. Leonard has more tornadoes within 25 miles than 65% of the 546 Michigan cities. Hail has been reported within 10 miles 44 times since 1971, with stones up to 1.75 inches (golf ball size). Leonard has more hail reports within 10 miles than 60% of the 546 Michigan cities.
Compare Leonard's storm record with another city →
Tropical storms and hurricanes near Leonard
| Year | Storm | Closest | Strength when closest | Peak |
|---|---|---|---|---|
| 2008 | IkeSep 14 | 23 mi | Tropical storm (58 mph) | Category 4 |
| 1955 | ConnieAug 14 | 66 mi | Tropical storm (46 mph) | Category 4 |
| 1932 | Unnamed 1932 stormSep 4 | 25 mi | Tropical storm (49 mph) | Category 1 |
| 1923 | Unnamed 1923 stormOct 19 | 62 mi | Tropical storm (40 mph) | Tropical storm |
| 1900 | Unnamed 1900 stormSep 12 | 51 mi | Tropical storm (64 mph) | Category 4 |
| 1892 | Unnamed 1892 stormSep 14 | 23 mi | Tropical storm (58 mph) | Tropical storm |
Strength is the sustained wind on the track at the closest point, which is not the wind felt in Leonard: a hurricane's worst winds sit within a few dozen miles of its centre, and inland cities are usually past that.
Tornadoes within 25 miles of Leonard
By decade
- 2020s8
- 2010s7
- 2000s7
- 1990s12(1 EF3+)
- 1980s15
- 1970s18(2 EF3+)
- 1960s3(1 EF3+)
- 1950s6(3 EF3+)
| Date | Rating | Distance | Path | Killed / injured |
|---|---|---|---|---|
| May 8, 1964 | F4 | 20 mi | 3.3 mi | 11 / 224 |
| May 12, 1956 | F4 | 23 mi | 6.6 mi | 3 / 116 |
| Mar 20, 1976 | F4 | 22 mi | 3.8 mi | 1 / 55 |
| Jul 4, 1957 | F4 | 22 mi | 29.9 mi | 0 / 6 |
| Jun 8, 1953 | F4 | 21 mi | 33.8 mi | 0 / 23 |
| Mar 20, 1976 | F3 | 13 mi | 17.1 mi | 1 / 3 |
| Sep 14, 1990 | F3 | 25 mi | 24 mi | 0 / 0 |
| Feb 28, 2024 | EF2 | 22 mi | 5.73 mi | 0 / 0 |
| May 28, 2013 | EF2 | 19 mi | 4.61 mi | 0 / 0 |
| Mar 15, 2012 | EF2 | 21 mi | 4.59 mi | 0 / 0 |
| Aug 24, 2007 | EF2 | 22 mi | 23.52 mi | 0 / 1 |
| Sep 10, 1986 | F2 | 16 mi | 7.7 mi | 0 / 0 |
The strongest 12 of 76, by rating and then by deaths. Ratings before February 2007 are on the original Fujita scale.
Hail in Leonard
The Storm Prediction Center has 44 hail reports within 10 miles of Leonard since 1971, made on 28 separate days. Of these, 19 were 1 inch across or larger, and none reached 2 inches. The largest size, 1.75 inches (golf ball size), was reported on 4 days, most recently June 25, 2009. The most recent report is from June 21, 2025. June has the most reports, 13.
Source: NOAA Storm Prediction Center severe weather reports, data through 2025.
Weather by month in Leonard
The nearest NOAA station with 1991–2020 climate normals is Pontiac Wwtp, MI, 15 miles south of Leonard at 890 feet. July is the warmest, with an average high of 82°F and low of 63°F; January is the coolest, at 31°F and 17°F. May is the wettest at 3.8 inches of precipitation on average and February the driest at 1.9 inches; the year adds up to 33.9 inches over 71 days with at least a tenth of an inch. Highs reach 90°F on about 10 days a year, almost all from June to September. Lows fall below freezing on about 135 nights a year. Snowfall averages 36.0 inches a year, most of it in January. That 33.9 inches is more than at 60 of the 131 Michigan stations used on this site (46%). Romeo, 6 miles east, has its own station (Richmond 4 NNW, MI): 36.1 inches a year, 2.2 more than here, and a July average high of 83°F against 82°F.
| Month | High °F | Low °F | Precip. in | Days ≥ 0.1" | Snow in |
|---|---|---|---|---|---|
| Jan | 31 | 17 | 2.2 | 5 | 12.1 |
| Feb | 34 | 18 | 1.9 | 5 | 9.0 |
| Mar | 44 | 26 | 2.2 | 5 | 4.1 |
| Apr | 58 | 36 | 2.9 | 7 | 0.9 |
| May | 69 | 49 | 3.8 | 8 | 0.0 |
| Jun | 78 | 59 | 3.3 | 6 | 0.0 |
| Jul | 82 | 63 | 3.1 | 6 | 0.0 |
| Aug | 81 | 62 | 3.2 | 6 | 0.0 |
| Sep | 74 | 54 | 2.9 | 5 | 0.0 |
| Oct | 61 | 42 | 2.9 | 7 | 0.1 |
| Nov | 47 | 32 | 3.2 | 6 | 1.7 |
| Dec | 36 | 24 | 2.3 | 6 | 8.1 |
| Year | 58 | 40 | 33.9 | 71 | 36.0 |
Averages for 1991–2020 at Pontiac Wwtp, MI (890 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 Leonard
Since 1996, the National Weather Service has logged 142 flood, rain, thunderstorm wind and lightning events that began within 10 miles of Leonard: 132 thunderstorm wind reports, 5 flash floods, 4 floods and 1 lightning strike. They killed 0 people and injured 1, and the NWS estimated $4.9 million in property and crop damage. The strongest thunderstorm gust on record here was 75 mph, on May 31, 1998. August has had the most flash floods, 2 of 5. Of the 376 Michigan cities on this site with a flash flood on record, 280 have had fewer than Leonard.
May 15, 2007: thunderstorm wind 8 miles from the centre of Leonard — 1 injured, $10,000 damage.
October 8, 2021: flash flood 6 miles from the centre of Leonard — $3.4 million damage.
September 14, 2008: flood 5 miles from the centre of Leonard — $750,000 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
Oakland County, which includes Leonard, has been named in 15 federal disaster or emergency declarations since 1975, 9 of them major disasters (by incident: 5 severe storms, 3 floods, 3 snowstorms, 2 biological emergencies). The latest major disaster declaration was Severe Storms, Tornadoes, and Flooding, on February 8, 2024. FEMA's National Risk Index gives Oakland County a Relatively High rating for natural hazard risk overall; by hazard: Very High for tornadoes and strong wind; Relatively High for inland flooding, lightning and heat waves; Relatively Moderate for hail; Very Low for hurricanes. It models the county's expected loss from all 18 hazards it covers at $359.1 million a year, the 2nd highest of 83 Michigan counties; of the hazards above, the largest share, $164.9 million (46%), 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.