NHC HURDAT2 · SPC Tornado Database
Hurricanes and Tornadoes That Hit Casa Grande, AZ
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 Casa Grande, Arizona since records began in 1851. Since 1950, 27 tornadoes have touched down within 25 miles, 0 of them rated EF3 or stronger.
- Hurricanes
- 0
- Tropical storms
- 0
- Tornadoes
- 27
- EF3 or stronger
- 0
within 75 mi, since 1851
below hurricane strength
within 25 mi, since 1950
no recorded deaths
What the records show for Casa Grande
The highest rating among the 27 tornadoes within 25 miles is F1, reached 12 times; the most recent, on January 18, 1993, came within 16 miles. Of the 27, none had a path within 5 miles of the city centre, and 8 have come since 2000. July and September have had the most tornadoes, 6 each. The most recent tornado was on March 7, 2024. Casa Grande has more tornadoes within 25 miles than 77% of the 134 Arizona cities on this site. Hail has been reported within 10 miles 9 times since 1979, with stones up to 1.75 inches (golf ball size). Of the 134 Arizona cities, 51% have more hail reports within 10 miles than Casa Grande.
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Tornadoes within 25 miles of Casa Grande
By decade
- 2020s3
- 2010s5
- 1990s2
- 1980s7
- 1970s6
- 1960s3
- 1950s1
| Date | Rating | Distance | Path | Killed / injured |
|---|---|---|---|---|
| Jan 18, 1993 | F1 | 16 mi | 2 mi | 0 / 0 |
| Jul 20, 1988 | F1 | 16 mi | 0.5 mi | 0 / 0 |
| Mar 15, 1985 | F1 | 13 mi | 0.1 mi | 0 / 0 |
| Jul 22, 1984 | F1 | 10 mi | 1 mi | 0 / 0 |
| Sep 5, 1981 | F1 | 20 mi | 2 mi | 0 / 0 |
| Jun 21, 1972 | F1 | 19 mi | 6.4 mi | 0 / 5 |
| Jun 21, 1972 | F1 | 15 mi | 1 mi | 0 / 8 |
| Sep 1, 1971 | F1 | 8 mi | 32.4 mi | 0 / 0 |
| Jul 16, 1967 | F1 | 12 mi | 1 mi | 0 / 0 |
| Jul 22, 1961 | F1 | 24 mi | 0.1 mi | 0 / 0 |
| Sep 8, 1960 | F1 | 7 mi | 0.1 mi | 0 / 0 |
| Jun 13, 1955 | F1 | 25 mi | 1 mi | 0 / 0 |
The strongest 12 of 27, by rating and then by deaths. Ratings before February 2007 are on the original Fujita scale.
Hail in Casa Grande
The Storm Prediction Center has 9 hail reports within 10 miles of Casa Grande since 1979, made on 7 separate days. Of these, 4 were 1 inch across or larger, and none reached 2 inches. The largest, 1.75 inches (golf ball size), fell on October 6, 2015. The most recent report is from June 11, 2016.
Source: NOAA Storm Prediction Center severe weather reports, data through 2025.
Weather by month in Casa Grande
The nearest NOAA station with 1991–2020 climate normals is Casa Grande, AZ, 2 miles southeast of Casa Grande at 1,400 feet. July is the warmest, with an average high of 107°F and low of 78°F; December is the coolest, at 68°F and 38°F. Highs reach 90°F on about 184 days a year, almost all from March to November. Lows fall below freezing on about 17 nights a year. That 7.9 inches is more than at 15 of the 76 Arizona stations used on this site (20%). Sacaton, 12 miles north, has its own station (Casa Grande Nm, AZ): 8.3 inches a year, 0.4 more than here, and the same July average high, 107°F.
| Month | High °F | Low °F | Precip. in | Days ≥ 0.1" |
|---|---|---|---|---|
| Jan | 69 | 39 | 0.8 | 2 |
| Feb | 73 | 42 | 1.0 | 3 |
| Mar | 80 | 47 | 0.8 | 2 |
| Apr | 88 | 53 | 0.2 | 1 |
| May | 96 | 60 | 0.2 | 1 |
| Jun | 106 | 70 | 0.2 | 0 |
| Jul | 107 | 78 | 0.9 | 2 |
| Aug | 105 | 77 | 1.5 | 2 |
| Sep | 100 | 71 | 0.7 | 1 |
| Oct | 91 | 57 | 0.5 | 1 |
| Nov | 78 | 45 | 0.4 | 1 |
| Dec | 68 | 38 | 0.7 | 2 |
| Year | 88 | 56 | 7.9 | 18 |
Averages for 1991–2020 at Casa Grande, AZ (1,400 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 Casa Grande
Since 1996, the National Weather Service has logged 60 flood, rain, thunderstorm wind and lightning events that began within 10 miles of Casa Grande: 46 thunderstorm wind reports, 9 flash floods and 5 heavy rain events. They killed 0 people and injured 2, and the NWS estimated $5.8 million in property and crop damage. The strongest thunderstorm gust on record here was 90 mph, on July 31, 2011. Of the 130 Arizona cities on this site with a flash flood on record, 40 have had fewer than Casa Grande.
August 2, 2018: thunderstorm wind 9 miles from the centre of Casa Grande — 2 injured, $250,000 damage.
NWS: “Unusually strong monsoon thunderstorms developed to the southeast of Phoenix during the afternoon hours on August 2nd, and they moved steadily to the north and into the deserts around Eloy and Casa Grande during early evening bringing very damaging microburst winds to the area.”
August 13, 2007: thunderstorm wind 5 miles from the centre of Casa Grande — $5.0 million damage.
NWS: “About 90 mobile homes damaged or destroyed at Las Casitas trailer park. One third of them were blown off their foundations.”
June 6, 2006: thunderstorm wind 10 miles from the centre of Casa Grande — $100,000 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 Casa Grande's 3 ZIP codes have filed 17 claims with the National Flood Insurance Program since 1996, and were paid $349,000 for buildings and contents, in the dollars of each year. Of the 50 Arizona cities on this site with 10 or more claims, 9 have fewer than Casa Grande.
Pinal County, which includes Casa Grande, has been named in 23 federal disaster or emergency declarations since 1966, 10 of them major disasters (by incident: 10 fires, 6 floods, 3 severe storms, 2 biological emergencies). The latest major disaster declaration was Covid-19 Pandemic, on April 4, 2020. FEMA's National Risk Index gives Pinal County a Relatively Moderate rating for natural hazard risk overall; by hazard: Very High for lightning; Relatively High for inland flooding and heat waves; Relatively Moderate for hail and strong wind; Relatively Low for tornadoes; Very Low for hurricanes. It models the county's expected loss from all 18 hazards it covers at $137.5 million a year, the 3rd highest of 15 Arizona counties; of the hazards above, the largest share, $92.4 million (67%), 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 Casa Grande
- Sacaton, AZ12 mi
- Coolidge, AZ15 mi
- Maricopa, AZ17 mi
- Queen Creek, AZ19 mi
- Eloy, AZ20 mi
- San Tan Valley, AZ20 mi
- Gilbert, AZ28 mi
- Florence, AZ30 mi
- Red Rock, AZ32 mi
- Chandler, AZ34 mi
- Mesa, AZ35 mi
- Gold Canyon, AZ35 mi
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