NHC HURDAT2 · SPC Tornado Database
Hurricanes and Tornadoes That Hit Mona, UT
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 Mona, Utah since records began in 1851. Since 1950, 5 tornadoes have touched down within 25 miles, 0 of them rated EF3 or stronger.
- Hurricanes
- 0
- Tropical storms
- 0
- Tornadoes
- 5
- 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 Mona
The strongest of the 5 tornadoes within 25 miles was an F1 on April 17, 1966; its path came within 25 miles. Of the 5, one had a path within 5 miles of the city centre, and 2 have come since 2000. The most recent tornado was on July 13, 2021. Of the 99 Utah cities on this site, 74% have more tornadoes within 25 miles than Mona. Hail has been reported within 10 miles 4 times since 2001, with stones up to 1.5 inches (ping pong ball size). Of the 99 Utah cities, 77% have more hail reports within 10 miles than Mona.
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Tornadoes within 25 miles of Mona
By decade
- 2020s1
- 2000s1
- 1980s1
- 1970s1
- 1960s1
| Date | Rating | Distance | Path | Killed / injured |
|---|---|---|---|---|
| Apr 17, 1966 | F1 | 25 mi | 0.1 mi | 0 / 0 |
| Jun 9, 2003 | F0 | 15 mi | 0.1 mi | 0 / 0 |
| Aug 13, 1984 | F0 | 24 mi | 0.1 mi | 0 / 0 |
| Sep 2, 1971 | F0 | 22 mi | 0.1 mi | 0 / 0 |
| Jul 13, 2021 | Unrated | 3 mi | 0.2 mi | 0 / 0 |
The strongest 5 of 5, by rating and then by deaths. Ratings before February 2007 are on the original Fujita scale.
Hail in Mona
The Storm Prediction Center has 4 hail reports within 10 miles of Mona since 2001. Of these, 2 were 1 inch across or larger, and none reached 2 inches. The largest, 1.5 inches (ping pong ball size), fell on July 19, 2022, the most recent report.
Source: NOAA Storm Prediction Center severe weather reports, data through 2025.
Weather by month in Mona
The nearest NOAA station with 1991–2020 climate normals is Santaquin Chlorinator, UT, 8 miles northeast of Mona at 5,160 feet. July is the warmest, with an average high of 90°F and low of 63°F; January is the coolest, at 37°F and 20°F. April is the wettest at 2.2 inches of precipitation on average and July the driest at 0.7 inches; the year adds up to 18.2 inches over 46 days with at least a tenth of an inch. Highs reach 90°F on about 50 days a year, almost all from June to September. Lows fall below freezing on about 144 nights a year. Snowfall averages 55.1 inches a year, most of it in January. That 18.2 inches is more than at 38 of the 58 Utah stations used on this site (66%). Nephi, 12 miles south, has its own station (Nephi, UT): 13.7 inches a year, 4.5 less than here, and the same July average high, 90°F.
| Month | High °F | Low °F | Precip. in | Days ≥ 0.1" | Snow in |
|---|---|---|---|---|---|
| Jan | 37 | 20 | 1.8 | 5 | 13.4 |
| Feb | 42 | 24 | 1.6 | 5 | 13.3 |
| Mar | 52 | 31 | 1.9 | 5 | 6.9 |
| Apr | 59 | 36 | 2.2 | 6 | 3.3 |
| May | 69 | 44 | 1.9 | 4 | 0.0 |
| Jun | 81 | 53 | 0.9 | 2 | 0.0 |
| Jul | 90 | 63 | 0.7 | 2 | 0.0 |
| Aug | 88 | 61 | 0.8 | 2 | 0.0 |
| Sep | 78 | 51 | 1.2 | 3 | 0.1 |
| Oct | 64 | 38 | 1.8 | 4 | 0.8 |
| Nov | 49 | 28 | 1.5 | 4 | 5.6 |
| Dec | 38 | 20 | 1.9 | 5 | 11.7 |
| Year | 62 | 39 | 18.2 | 46 | 55.1 |
Averages for 1991–2020 at Santaquin Chlorinator, UT (5,160 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 Mona
Since 1996, the National Weather Service has logged 16 flood, rain, thunderstorm wind and lightning events that began within 10 miles of Mona: 15 thunderstorm wind reports and 1 flash flood. None is recorded as killing or injuring anyone; the NWS estimated $903,000 in property and crop damage. The strongest thunderstorm gust on record here was 77 mph, on August 2, 2023.
September 7, 2013: flash flood 7 miles from the centre of Mona — $900,000 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
Juab County, which includes Mona, has been named in 9 federal disaster or emergency declarations since 1977, 3 of them major disasters (by incident: 3 fires, 2 biological emergencies, 2 floods, 1 coastal storm). The latest major disaster declaration was Covid-19 Pandemic, on April 4, 2020. FEMA's National Risk Index gives Juab County a Very Low rating for natural hazard risk overall; by hazard: Relatively Low for lightning; Very Low for tornadoes, hail, inland flooding, strong wind and heat waves. It models the county's expected loss from all 18 hazards it covers at $9.0 million a year, the 16th highest of 29 Utah counties; of the hazards above, the largest share, $1.0 million (11%), 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 Mona
- Nephi, UT12 mi
- Santaquin, UT12 mi
- Payson, UT13 mi
- Salem, UT16 mi
- Spanish Fork, UT20 mi
- Mapleton, UT24 mi
- Fairview, UT25 mi
- Springville, UT25 mi
- Vineyard, UT28 mi
- Provo, UT29 mi
- Saratoga Springs, UT29 mi
- Mt Pleasant, UT31 mi
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