NHC HURDAT2 · SPC Tornado Database
Hurricanes and Tornadoes That Hit Seven Valleys, 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
25 tropical systems have passed within 75 miles of Seven Valleys, Pennsylvania since 1851, 2 of them at hurricane strength; the most recent was Ida in 2021. Since 1950, 78 tornadoes have touched down within 25 miles, 3 of them rated EF3 or stronger.
- Hurricanes
- 2
- Tropical storms
- 23
- Tornadoes
- 78
- 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 Seven Valleys
The strongest storm to pass near Seven Valleys was an unnamed storm in 1878, a Category 1 hurricane with 89 mph winds when its centre passed 8 miles away. The record near Seven Valleys begins with an unnamed storm in 1876; the most recent system was Ida in 2021, a tropical storm 62 miles away. The 1890s and the 1950s were the busiest decades, with 4 systems each. Of the 25 systems, 4 have come since 2000. Seven Valleys has more hurricanes within 75 miles than 54% of the 794 Pennsylvania cities on this site. The highest rating among the 78 tornadoes within 25 miles is F3, reached 3 times; the most recent, on May 22, 1983, came within 25 miles. Of the 78, 3 had paths within 5 miles of the city centre, and 31 have come since 2000. June has had the most tornadoes, 19. The most recent tornado was on June 5, 2024. Seven Valleys has more tornadoes within 25 miles than 81% of the 794 Pennsylvania cities. Hail has been reported within 10 miles 67 times since 1962, with stones up to 2.5 inches (tennis ball size). Seven Valleys has more hail reports within 10 miles than 62% of the 794 Pennsylvania cities.
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Tropical storms and hurricanes near Seven Valleys
| Year | Storm | Closest | Strength when closest | Peak |
|---|---|---|---|---|
| 2021 | IdaSep 2 | 62 mi | Tropical storm (40 mph) | Category 4 |
| 2020 | IsaiasAug 4 | 54 mi | Tropical storm (66 mph) | Category 1 |
| 2012 | SandyOct 30 | 8 mi | Tropical storm (61 mph) | Category 3 |
| 2006 | ErnestoSep 2 | 3 mi | Tropical storm (40 mph) | Category 1 |
| 1992 | DanielleSep 26 | 49 mi | Tropical storm (40 mph) | Tropical storm |
| 1979 | DavidSep 6 | 48 mi | Tropical storm (46 mph) | Category 5 |
| 1955 | DianeAug 18 | 11 mi | Tropical storm (40 mph) | Category 2 |
| 1955 | ConnieAug 13 | 13 mi | Tropical storm (55 mph) | Category 4 |
| 1954 | HazelOct 15 | 27 mi | Category 1 (82 mph) | Category 4 |
| 1952 | AbleSep 1 | 8 mi | Tropical storm (58 mph) | Category 2 |
| 1949 | Unnamed 1949 stormAug 29 | 24 mi | Tropical storm (58 mph) | Category 4 |
| 1943 | Unnamed 1943 stormOct 1 | 24 mi | Tropical storm (40 mph) | Tropical storm |
| 1934 | Unnamed 1934 stormJun 19 | 32 mi | Tropical storm (46 mph) | Category 2 |
| 1933 | Unnamed 1933 stormAug 24 | 17 mi | Tropical storm (56 mph) | Category 4 |
| 1929 | Unnamed 1929 stormOct 2 | 22 mi | Tropical storm (58 mph) | Category 4 |
| 1928 | Unnamed 1928 stormSep 20 | 66 mi | Tropical storm (46 mph) | Category 5 |
| 1915 | Unnamed 1915 stormAug 4 | 23 mi | Tropical storm (49 mph) | Category 1 |
| 1899 | Unnamed 1899 stormNov 1 | 38 mi | Tropical storm (58 mph) | Category 2 |
| 1893 | Unnamed 1893 stormOct 23 | 39 mi | Tropical storm (43 mph) | Tropical storm |
| 1893 | Unnamed 1893 stormOct 14 | 63 mi | Tropical storm (72 mph) | Category 3 |
| 1893 | Unnamed 1893 stormAug 29 | 13 mi | Tropical storm (63 mph) | Category 3 |
| 1888 | Unnamed 1888 stormAug 21 | 44 mi | Tropical storm (47 mph) | Category 3 |
| 1885 | Unnamed 1885 stormOct 13 | 49 mi | Tropical storm (46 mph) | Tropical storm |
| 1878 | Unnamed 1878 stormOct 23 | 8 mi | Category 1 (89 mph) | Category 2 |
| 1876 | Unnamed 1876 stormSep 18 | 54 mi | Tropical storm (62 mph) | Category 3 |
Strength is the sustained wind on the track at the closest point, which is not the wind felt in Seven Valleys: 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 Seven Valleys
By decade
- 2020s8
- 2010s15
- 2000s8
- 1990s23
- 1980s6(2 EF3+)
- 1970s8
- 1960s5
- 1950s5(1 EF3+)
| Date | Rating | Distance | Path | Killed / injured |
|---|---|---|---|---|
| May 22, 1983 | F3 | 25 mi | 2 mi | 0 / 0 |
| Jun 7, 1980 | F3 | 15 mi | 1.5 mi | 0 / 0 |
| Apr 5, 1952 | F3 | 4 mi | 17.5 mi | 0 / 4 |
| Apr 28, 2011 | EF2 | 20 mi | 2.62 mi | 0 / 0 |
| Sep 18, 2004 | F2 | 23 mi | 2 mi | 0 / 0 |
| Sep 24, 2001 | F2 | 9 mi | 5 mi | 0 / 0 |
| May 29, 1995 | F2 | 21 mi | 2.5 mi | 0 / 1 |
| Oct 9, 1992 | F2 | 21 mi | 2 mi | 0 / 0 |
| May 6, 1991 | F2 | 17 mi | 1 mi | 0 / 3 |
| Jun 8, 1990 | F2 | 8 mi | 1 mi | 0 / 1 |
| Jun 15, 1989 | F2 | 10 mi | 16 mi | 0 / 6 |
| Jul 31, 1985 | F2 | 21 mi | 3 mi | 0 / 2 |
The strongest 12 of 78, by rating and then by deaths. Ratings before February 2007 are on the original Fujita scale.
Hail in Seven Valleys
The Storm Prediction Center has 67 hail reports within 10 miles of Seven Valleys since 1962, made on 42 separate days. Of these, 35 were 1 inch across or larger, and 4 reached 2 inches. The largest, 2.5 inches (tennis ball size), fell on July 30, 1999. The most recent report is from March 16, 2025. May has the most reports, 19.
Source: NOAA Storm Prediction Center severe weather reports, data through 2025.
Weather by month in Seven Valleys
The nearest NOAA station with 1991–2020 climate normals is York 3 SSW Pump Stn, PA, 5 miles north of Seven Valleys at 390 feet. July is the warmest, with an average high of 88°F and low of 63°F; January is the coolest, at 41°F and 21°F. September is the wettest at 5.1 inches of precipitation on average and February the driest at 2.8 inches; the year adds up to 46.4 inches over 79 days with at least a tenth of an inch. June to November, the hurricane season months, bring 54% of the year's precipitation (25.0 of 46.4 inches); the other six months are drier. Highs reach 90°F on about 28 days a year, almost all from May to September. Lows fall below freezing on about 120 nights a year. Snowfall averages 24.6 inches a year, most of it in January. That 46.4 inches is more than at 91 of the 148 Pennsylvania stations used on this site (61%). Glen Rock, 5 miles south, has its own station (Millers 4 NE, MD): 47.8 inches a year, 1.4 more than here, and a July average high of 85°F against 88°F.
| Month | High °F | Low °F | Precip. in | Days ≥ 0.1" | Snow in |
|---|---|---|---|---|---|
| Jan | 41 | 21 | 3.3 | 6 | 8.5 |
| Feb | 45 | 23 | 2.8 | 6 | 8.2 |
| Mar | 55 | 30 | 4.0 | 7 | 3.9 |
| Apr | 67 | 40 | 3.6 | 7 | 0.2 |
| May | 77 | 50 | 4.2 | 8 | 0.0 |
| Jun | 84 | 59 | 4.3 | 7 | 0.0 |
| Jul | 88 | 63 | 4.5 | 7 | 0.0 |
| Aug | 86 | 62 | 4.0 | 6 | 0.0 |
| Sep | 80 | 55 | 5.1 | 6 | 0.0 |
| Oct | 68 | 43 | 3.9 | 5 | 0.0 |
| Nov | 56 | 33 | 3.2 | 6 | 0.5 |
| Dec | 45 | 26 | 3.5 | 7 | 3.3 |
| Year | 66 | 42 | 46.4 | 79 | 24.6 |
Averages for 1991–2020 at York 3 SSW Pump Stn, PA (390 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 Seven Valleys
Since 1996, the National Weather Service has logged 273 flood, rain, thunderstorm wind and lightning events that began within 10 miles of Seven Valleys: 243 thunderstorm wind reports, 23 flash floods, 4 floods and 3 lightning strikes. They killed 2 people and injured 10, and the NWS estimated $2.8 million in property and crop damage. The strongest thunderstorm gust on record here was 98 mph, on May 31, 1998. July has had the most flash floods, 11 of 23. Of the 788 Pennsylvania cities on this site with a flash flood on record, 370 have had fewer than Seven Valleys.
August 10, 1998: thunderstorm wind 7 miles from the centre of Seven Valleys — 1 killed.
June 6, 2026: thunderstorm wind 9 miles from the centre of Seven Valleys — 1 killed.
July 28, 2021: thunderstorm wind 7 miles from the centre of Seven Valleys — 6 injured, $2,000 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 Seven Valleys's ZIP code 17360 have filed 36 claims with the National Flood Insurance Program since 1978, and were paid $317,000 for buildings and contents, in the dollars of each year. The year with the most claims was 1979, 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, 213 have fewer than Seven Valleys.
York County, which includes Seven Valleys, has been named in 21 federal disaster or emergency declarations since 1972, 14 of them major disasters (by incident: 6 floods, 5 hurricanes, 4 snowstorms, 3 severe storms). The latest major disaster declaration was Remnants of Hurricane Ida, on September 10, 2021. FEMA's National Risk Index gives York County a Relatively Moderate rating for natural hazard risk overall; by hazard: Relatively High for inland flooding, strong wind and lightning; Relatively Moderate for hurricanes and heat waves; Relatively Low for tornadoes; Very Low for hail. It models the county's expected loss from all 18 hazards it covers at $106.0 million a year, the 10th highest of 67 Pennsylvania counties; of the hazards above, the largest share, $69.0 million (65%), 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 Seven Valleys
- Jacobus, PA4 mi
- Glen Rock, PA5 mi
- Spring Grove, PA6 mi
- Dallastown, PA7 mi
- Shrewsbury, PA7 mi
- Glenville, PA8 mi
- New Freedom, PA8 mi
- York, PA8 mi
- Thomasville, PA9 mi
- Red Lion, PA9 mi
- Freeland, MD11 mi
- Stewartstown, PA11 mi
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