NHC HURDAT2 · SPC Tornado Database
Hurricanes and Tornadoes That Hit Deerfield, IL
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
1 tropical system has passed within 75 miles of Deerfield, Illinois since 1851, 0 of them at hurricane strength; the most recent was an unnamed storm in 1900. Since 1950, 97 tornadoes have touched down within 25 miles, 4 of them rated EF3 or stronger.
- Hurricanes
- 0
- Tropical storms
- 1
- Tornadoes
- 97
- EF3 or stronger
- 4
within 75 mi, since 1851
below hurricane strength
within 25 mi, since 1950
12 deaths in all
What the records show for Deerfield
None of the 1 tropical systems was at hurricane strength as it passed Deerfield; the strongest was an unnamed storm in 1900, a tropical storm with 59 mph winds when its centre passed 38 miles away. Of the 548 Illinois cities on this site, 57% have more tropical storms and hurricanes within 75 miles than Deerfield. The highest rating among the 97 tornadoes within 25 miles is F4, reached 3 times; the most recent, on September 28, 1972, came within 8 miles. The deadliest, an F4 on April 11, 1965, killed 6 people. Of the 97, one had a path within 5 miles of the city centre, and 42 have come since 2000. July has had the most tornadoes, 25. The most recent tornado was on March 14, 2025. Of the 548 Illinois cities, 82% have more tornadoes within 25 miles than Deerfield. Hail has been reported within 10 miles 162 times since 1963, with stones up to 2.75 inches (baseball size). Deerfield has more hail reports within 10 miles than 71% of the 548 Illinois cities.
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Tropical storms and hurricanes near Deerfield
| Year | Storm | Closest | Strength when closest | Peak |
|---|---|---|---|---|
| 1900 | Unnamed 1900 stormSep 11 | 38 mi | Tropical storm (59 mph) | Category 4 |
Strength is the sustained wind on the track at the closest point, which is not the wind felt in Deerfield: 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 Deerfield
By decade
- 2020s33
- 2010s5
- 2000s4
- 1990s7
- 1980s5
- 1970s18(2 EF3+)
- 1960s15(2 EF3+)
- 1950s10
| Date | Rating | Distance | Path | Killed / injured |
|---|---|---|---|---|
| Apr 11, 1965 | F4 | 18 mi | 9.1 mi | 6 / 75 |
| Apr 21, 1967 | F4 | 13 mi | 8.8 mi | 1 / 100 |
| Sep 28, 1972 | F4 | 8 mi | 5.2 mi | 0 / 20 |
| Mar 12, 1976 | F3 | 23 mi | 22.6 mi | 0 / 3 |
| Mar 12, 1976 | F2 | 10 mi | 15.1 mi | 2 / 66 |
| Jun 9, 1966 | F2 | 6 mi | 2.5 mi | 1 / 30 |
| Mar 4, 1961 | F2 | 20 mi | 7.9 mi | 1 / 115 |
| Oct 8, 1958 | F2 | 15 mi | 81 mi | 1 / 0 |
| May 18, 1997 | F2 | 14 mi | 6 mi | 0 / 0 |
| Apr 19, 1996 | F2 | 20 mi | 2 mi | 0 / 2 |
| Apr 20, 1976 | F2 | 20 mi | 0.8 mi | 0 / 2 |
| Jun 17, 1975 | F2 | 9 mi | 1.5 mi | 0 / 0 |
The strongest 12 of 97, by rating and then by deaths. Ratings before February 2007 are on the original Fujita scale.
Hail in Deerfield
The Storm Prediction Center has 162 hail reports within 10 miles of Deerfield since 1963, made on 71 separate days. Of these, 107 were 1 inch across or larger, and 7 reached 2 inches. The largest size, 2.75 inches (baseball size), was reported on 2 days, most recently April 5, 2010. The most recent report is from August 16, 2025. April has the most reports, 53.
Source: NOAA Storm Prediction Center severe weather reports, data through 2025.
Weather by month in Deerfield
The nearest NOAA station with 1991–2020 climate normals is Chicago Palwaukee Airport, IL, 4 miles southwest of Deerfield at 636 feet. July is the warmest, with an average high of 84°F and low of 66°F; January is the coolest, at 32°F and 18°F. June is the wettest at 4.0 inches of precipitation on average and January and February the driest at 1.3 inches; the year adds up to 32.3 inches over 63 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 122 nights a year. That 32.3 inches is more than at 0 of the 146 Illinois stations used on this site (0%). Highland Park, 3 miles east, has its own station (Chicago Botanic Garden, IL): 39.5 inches a year, 7.2 more than here, and the same July average high, 84°F.
| Month | High °F | Low °F | Precip. in | Days ≥ 0.1" |
|---|---|---|---|---|
| Jan | 32 | 18 | 1.3 | 3 |
| Feb | 36 | 21 | 1.3 | 3 |
| Mar | 47 | 30 | 1.8 | 5 |
| Apr | 58 | 39 | 3.3 | 7 |
| May | 70 | 50 | 3.8 | 8 |
| Jun | 80 | 60 | 4.0 | 7 |
| Jul | 84 | 66 | 3.2 | 5 |
| Aug | 82 | 65 | 3.7 | 6 |
| Sep | 75 | 56 | 3.0 | 5 |
| Oct | 63 | 45 | 3.1 | 6 |
| Nov | 49 | 33 | 2.2 | 4 |
| Dec | 37 | 24 | 1.6 | 4 |
| Year | 59 | 42 | 32.3 | 63 |
Averages for 1991–2020 at Chicago Palwaukee Airport, IL (636 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 Deerfield
Since 1996, the National Weather Service has logged 321 flood, rain, thunderstorm wind and lightning events that began within 10 miles of Deerfield: 224 thunderstorm wind reports, 40 floods, 37 flash floods, 11 heavy rain events and 9 lightning strikes. They killed 3 people and injured 14, and the NWS estimated $23.9 million in property and crop damage. The strongest thunderstorm gust on record here was 84 mph, on May 18, 2000. June has had the most flash floods, 12 of 37. Of the 547 Illinois cities on this site with a flash flood on record, 437 have had fewer than Deerfield.
October 13, 2001: thunderstorm wind 10 miles from the centre of Deerfield — 1 killed, 6 injured, $5,000 damage.
May 18, 2000: thunderstorm wind 9 miles from the centre of Deerfield — 1 killed.
September 5, 2014: thunderstorm wind 4 miles from the centre of Deerfield — 1 killed.
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 Deerfield's ZIP code 60015 have filed 259 claims with the National Flood Insurance Program since 1978, and were paid $2.6 million for buildings and contents, in the dollars of each year. The most came from Flooding in 1982: 121 claims (47% of all) and $1.2 million, then Mid-spring storms in 2013 with 15. 53% of the claims carry the name of a storm or flood event; the rest have no event name. Of the 320 Illinois cities on this site with 10 or more claims, 279 have fewer than Deerfield.
| Event | Claims | Paid |
|---|---|---|
| Flooding1982 | 121 | $1.2 million |
| Mid-spring storms2013 | 15 | $311,000 |
Lake County, which includes Deerfield, has been named in 17 federal disaster or emergency declarations since 1965, 11 of them major disasters (by incident: 5 snowstorms, 4 floods, 3 severe storms, 2 biological emergencies). The latest major disaster declaration was Covid-19 Pandemic, on March 26, 2020. FEMA's National Risk Index gives Lake County a Relatively High rating for natural hazard risk overall; by hazard: Very High for tornadoes and strong wind; Relatively High for inland flooding and lightning; Relatively Moderate for hail and heat waves; Very Low for hurricanes and coastal flooding. It models the county's expected loss from all 18 hazards it covers at $266.5 million a year, the 4th highest of 102 Illinois counties; of the hazards above, the largest share, $155.5 million (58%), 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 Deerfield
- Highland Park, IL3 mi
- Northbrook, IL3 mi
- Lincolnshire, IL3 mi
- Highwood, IL4 mi
- Wheeling, IL4 mi
- Lake Forest, IL5 mi
- Buffalo Grove, IL5 mi
- Prospect Heights, IL5 mi
- Glencoe, IL6 mi
- Vernon Hills, IL7 mi
- Northfield, IL7 mi
- Arlington Heights, IL8 mi
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