NHC HURDAT2 · SPC Tornado Database
Hurricanes and Tornadoes That Hit Mount Holly Springs, PA
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
23 tropical systems have passed within 75 miles of Mount Holly Springs, Pennsylvania since 1851, 2 of them at hurricane strength; the most recent was Sandy in 2012. Since 1950, 61 tornadoes have touched down within 25 miles, 3 of them rated EF3 or stronger.
- Hurricanes
- 2
- Tropical storms
- 21
- Tornadoes
- 61
- EF3 or stronger
- 3
within 75 mi, since 1851
below hurricane strength
within 25 mi, since 1950
no recorded deaths
What the records show for Mount Holly Springs
The strongest storm to pass near Mount Holly Springs was an unnamed storm in 1878, a Category 1 hurricane with 89 mph winds when its centre passed 37 miles away. The closest pass by a hurricane was Hazel in 1954, whose centre came within 2 miles. The record near Mount Holly Springs begins with an unnamed storm in 1876; the most recent system was Sandy in 2012, a tropical storm 6 miles away. The busiest decade was the 1890s, with 5 systems. Of the 23 systems, 2 have come since 2000. Mount Holly Springs has more hurricanes within 75 miles than 54% of the 794 Pennsylvania cities on this site. The highest rating among the 61 tornadoes within 25 miles is F3, reached 3 times; the most recent, on June 7, 1980, came within 16 miles. Of the 61, none had a path within 5 miles of the city centre, and 23 have come since 2000. August has had the most tornadoes, 12. The most recent tornado was on August 9, 2024. Mount Holly Springs has more tornadoes within 25 miles than 51% of the 794 Pennsylvania cities. Hail has been reported within 10 miles 34 times since 1962, with stones up to 2 inches (hen egg size). Of the 794 Pennsylvania cities, 67% have more hail reports within 10 miles than Mount Holly Springs.
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Tropical storms and hurricanes near Mount Holly Springs
| Year | Storm | Closest | Strength when closest | Peak |
|---|---|---|---|---|
| 2012 | SandyOct 30 | 6 mi | Tropical storm (60 mph) | Category 3 |
| 2006 | ErnestoSep 3 | 30 mi | Tropical storm (40 mph) | Category 1 |
| 1979 | DavidSep 6 | 18 mi | Tropical storm (46 mph) | Category 5 |
| 1955 | DianeAug 18 | 38 mi | Tropical storm (40 mph) | Category 2 |
| 1955 | ConnieAug 13 | overhead | Tropical storm (53 mph) | Category 4 |
| 1954 | HazelOct 15 | 2 mi | Category 1 (81 mph) | Category 4 |
| 1952 | AbleSep 1 | 36 mi | Tropical storm (58 mph) | Category 2 |
| 1949 | Unnamed 1949 stormAug 29 | 4 mi | Tropical storm (58 mph) | Category 4 |
| 1943 | Unnamed 1943 stormOct 1 | 47 mi | Tropical storm (40 mph) | Tropical storm |
| 1934 | Unnamed 1934 stormJun 19 | 58 mi | Tropical storm (46 mph) | Category 2 |
| 1933 | Unnamed 1933 stormAug 24 | 7 mi | Tropical storm (55 mph) | Category 4 |
| 1929 | Unnamed 1929 stormOct 2 | 49 mi | Tropical storm (58 mph) | Category 4 |
| 1928 | Unnamed 1928 stormSep 20 | 50 mi | Tropical storm (46 mph) | Category 5 |
| 1915 | Unnamed 1915 stormAug 4 | 52 mi | Tropical storm (49 mph) | Category 1 |
| 1899 | Unnamed 1899 stormNov 1 | 66 mi | Tropical storm (58 mph) | Category 2 |
| 1896 | Unnamed 1896 stormSep 30 | 75 mi | Tropical storm (67 mph) | Category 3 |
| 1893 | Unnamed 1893 stormOct 23 | 36 mi | Tropical storm (41 mph) | Tropical storm |
| 1893 | Unnamed 1893 stormOct 14 | 38 mi | Tropical storm (72 mph) | Category 3 |
| 1893 | Unnamed 1893 stormAug 29 | 42 mi | Tropical storm (63 mph) | Category 3 |
| 1888 | Unnamed 1888 stormAug 21 | 19 mi | Tropical storm (47 mph) | Category 3 |
| 1885 | Unnamed 1885 stormOct 13 | 22 mi | Tropical storm (46 mph) | Tropical storm |
| 1878 | Unnamed 1878 stormOct 23 | 37 mi | Category 1 (89 mph) | Category 2 |
| 1876 | Unnamed 1876 stormSep 18 | 36 mi | Tropical storm (61 mph) | Category 3 |
Strength is the sustained wind on the track at the closest point, which is not the wind felt in Mount Holly Springs: 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 Mount Holly Springs
By decade
- 2020s4
- 2010s7
- 2000s12
- 1990s14
- 1980s5(1 EF3+)
- 1970s8
- 1960s6(1 EF3+)
- 1950s5(1 EF3+)
| Date | Rating | Distance | Path | Killed / injured |
|---|---|---|---|---|
| Jun 7, 1980 | F3 | 16 mi | 1.5 mi | 0 / 0 |
| Apr 16, 1961 | F3 | 18 mi | 0.1 mi | 0 / 0 |
| Apr 5, 1952 | F3 | 24 mi | 17.5 mi | 0 / 4 |
| Apr 28, 2011 | EF2 | 14 mi | 2.62 mi | 0 / 0 |
| Oct 9, 1992 | F2 | 13 mi | 2 mi | 0 / 0 |
| Jun 20, 1989 | F2 | 24 mi | 2 mi | 0 / 1 |
| Jul 31, 1985 | F2 | 16 mi | 3 mi | 0 / 2 |
| Jun 7, 1980 | F2 | 9 mi | 5.6 mi | 0 / 0 |
| Aug 28, 1978 | F2 | 23 mi | 20 mi | 0 / 0 |
| Apr 5, 1977 | F2 | 21 mi | 2 mi | 0 / 1 |
| Mar 21, 1976 | F2 | 13 mi | 1 mi | 0 / 0 |
| Mar 26, 1970 | F2 | 25 mi | 2.5 mi | 0 / 0 |
The strongest 12 of 61, by rating and then by deaths. Ratings before February 2007 are on the original Fujita scale.
Hail in Mount Holly Springs
The Storm Prediction Center has 34 hail reports within 10 miles of Mount Holly Springs since 1962, made on 25 separate days. Of these, 20 were 1 inch across or larger, and 2 reached 2 inches. The largest size, 2 inches (hen egg size), was reported on 2 days, most recently May 14, 2010. The most recent report is from August 29, 2024. May has the most reports, 12.
Source: NOAA Storm Prediction Center severe weather reports, data through 2025.
Weather by month in Mount Holly Springs
The nearest NOAA station with 1991–2020 climate normals is Carlisle Wtp, PA, 8 miles north of Mount Holly Springs at 430 feet. July is the warmest, with an average high of 86°F and low of 63°F; January is the coolest, at 38°F and 21°F. July is the wettest at 5.5 inches of precipitation on average and February the driest at 2.6 inches; the year adds up to 48.2 inches over 86 days with at least a tenth of an inch. June to November, the hurricane season months, bring 55% of the year's precipitation (26.3 of 48.2 inches); the other six months are drier. October has brought the most of the 23 tropical systems that passed within 75 miles (8); a normal October there has highs of 66°F and 4.3 inches of precipitation. Highs reach 90°F on about 24 days a year, almost all from June to September. Lows fall below freezing on about 126 nights a year. Snowfall averages 27.7 inches a year, most of it in February. That 48.2 inches is more than at 112 of the 148 Pennsylvania stations used on this site (76%). Gardners, 6 miles south, has its own station (Biglerville, PA): 45.2 inches a year, 3.0 less than here, and the same July average high, 86°F.
| Month | High °F | Low °F | Precip. in | Days ≥ 0.1" | Snow in |
|---|---|---|---|---|---|
| Jan | 38 | 21 | 3.1 | 6 | 7.7 |
| Feb | 41 | 22 | 2.6 | 6 | 9.6 |
| Mar | 50 | 29 | 4.1 | 6 | 4.8 |
| Apr | 63 | 39 | 3.8 | 8 | 0.2 |
| May | 73 | 49 | 4.7 | 10 | 0.0 |
| Jun | 81 | 59 | 4.4 | 8 | 0.0 |
| Jul | 86 | 63 | 5.5 | 9 | 0.0 |
| Aug | 84 | 61 | 4.0 | 7 | 0.0 |
| Sep | 77 | 53 | 5.0 | 7 | 0.0 |
| Oct | 66 | 42 | 4.3 | 7 | 0.5 |
| Nov | 54 | 32 | 3.1 | 6 | 0.9 |
| Dec | 42 | 25 | 3.6 | 7 | 4.0 |
| Year | 63 | 41 | 48.2 | 86 | 27.7 |
Averages for 1991–2020 at Carlisle Wtp, PA (430 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 Mount Holly Springs
Since 1996, the National Weather Service has logged 170 flood, rain, thunderstorm wind and lightning events that began within 10 miles of Mount Holly Springs: 143 thunderstorm wind reports, 13 flash floods, 13 floods and 1 lightning strike. They killed 0 people and injured 6, and the NWS estimated $1.8 million in property and crop damage. The strongest thunderstorm gust on record here was 81 mph, on May 1, 2003. Of the 788 Pennsylvania cities on this site with a flash flood on record, 224 have had fewer than Mount Holly Springs.
August 25, 2007: thunderstorm wind 6 miles from the centre of Mount Holly Springs — 5 injured, $125,000 damage.
April 16, 2010: thunderstorm wind 8 miles from the centre of Mount Holly Springs — 1 injured.
September 7, 2011: flood 8 miles from the centre of Mount Holly Springs — $1.0 million 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 Mount Holly Springs's ZIP code 17065 have filed 43 claims with the National Flood Insurance Program since 1979, and were paid $204,000 for buildings and contents, in the dollars of each year. The year with the most claims was 2011, with 10. 28% of the claims carry the name of a storm or flood event; the rest have no event name. Of the 553 Pennsylvania cities on this site with 10 or more claims, 248 have fewer than Mount Holly Springs.
Cumberland County, which includes Mount Holly Springs, has been named in 19 federal disaster or emergency declarations since 1972, 13 of them major disasters (by incident: 7 floods, 4 snowstorms, 3 hurricanes, 3 severe storms). The latest major disaster declaration was Covid-19 Pandemic, on March 30, 2020. FEMA's National Risk Index gives Cumberland County a Relatively Moderate rating for natural hazard risk overall; by hazard: Relatively High for strong wind; Relatively Moderate for hurricanes, tornadoes, inland flooding, lightning and heat waves; Very Low for hail. It models the county's expected loss from all 18 hazards it covers at $68.7 million a year, the 16th highest of 67 Pennsylvania counties; of the hazards above, the largest share, $49.7 million (72%), 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 Mount Holly Springs
- Boiling Springs, PA4 mi
- Gardners, PA6 mi
- York Springs, PA9 mi
- Dillsburg, PA9 mi
- Aspers, PA10 mi
- Grantham, PA11 mi
- Newville, PA12 mi
- Mechanicsburg, PA13 mi
- Wellsville, PA14 mi
- Biglerville, PA14 mi
- East Berlin, PA14 mi
- Shermans Dale, PA15 mi
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