NHC HURDAT2 · SPC Tornado Database
Hurricanes and Tornadoes That Hit Boswell, 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
12 tropical systems have passed within 75 miles of Boswell, Pennsylvania since 1851, 0 of them at hurricane strength; the most recent was Sandy in 2012. Since 1950, 48 tornadoes have touched down within 25 miles, 2 of them rated EF3 or stronger.
- Hurricanes
- 0
- Tropical storms
- 12
- Tornadoes
- 48
- EF3 or stronger
- 2
within 75 mi, since 1851
below hurricane strength
within 25 mi, since 1950
1 deaths in all
What the records show for Boswell
None of the 12 tropical systems was at hurricane strength as it passed Boswell; the strongest was an unnamed storm in 1893, a tropical storm with 72 mph winds when its centre passed 60 miles away. The record near Boswell begins with an unnamed storm in 1876; the most recent system was Sandy in 2012, a tropical storm 18 miles away. The busiest decade was the 1890s, with 3 systems. Of the 12 systems, 2 have come since 2000. Of the 794 Pennsylvania cities on this site, 66% have more tropical storms and hurricanes within 75 miles than Boswell. The strongest of the 48 tornadoes within 25 miles was an F4 on June 2, 1998; its path came within 12 miles. The deadliest, an F3 on July 11, 1976, killed 1 person. Of the 48, 4 had paths within 5 miles of the city centre, and 21 have come since 2000. June has had the most tornadoes, 15. The most recent tornado was on March 16, 2025. Of the 794 Pennsylvania cities, 65% have more tornadoes within 25 miles than Boswell. Hail has been reported within 10 miles 17 times since 1977, with stones up to 2 inches (hen egg size). Of the 794 Pennsylvania cities, 89% have more hail reports within 10 miles than Boswell.
Compare Boswell's storm record with another city →
Tropical storms and hurricanes near Boswell
| Year | Storm | Closest | Strength when closest | Peak |
|---|---|---|---|---|
| 2012 | SandyOct 30 | 18 mi | Tropical storm (46 mph) | Category 3 |
| 2003 | IsabelSep 19 | 38 mi | Tropical storm (47 mph) | Category 5 |
| 1979 | DavidSep 6 | 64 mi | Tropical storm (46 mph) | Category 5 |
| 1928 | Unnamed 1928 stormSep 20 | 39 mi | Tropical storm (44 mph) | Category 5 |
| 1915 | Unnamed 1915 stormOct 1 | 39 mi | Tropical storm (40 mph) | Category 4 |
| 1896 | Unnamed 1896 stormSep 30 | 22 mi | Tropical storm (66 mph) | Category 3 |
| 1893 | Unnamed 1893 stormOct 23 | 57 mi | Tropical storm (40 mph) | Tropical storm |
| 1893 | Unnamed 1893 stormOct 14 | 60 mi | Tropical storm (72 mph) | Category 3 |
| 1888 | Unnamed 1888 stormAug 21 | 17 mi | Tropical storm (49 mph) | Category 3 |
| 1885 | Unnamed 1885 stormOct 13 | 74 mi | Tropical storm (46 mph) | Tropical storm |
| 1878 | Unnamed 1878 stormSep 13 | 8 mi | Tropical storm (52 mph) | Category 2 |
| 1876 | Unnamed 1876 stormSep 18 | 59 mi | Tropical storm (60 mph) | Category 3 |
Strength is the sustained wind on the track at the closest point, which is not the wind felt in Boswell: 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 Boswell
By decade
- 2020s10
- 2010s9
- 2000s2
- 1990s13(1 EF3+)
- 1980s6
- 1970s5(1 EF3+)
- 1950s3
| Date | Rating | Distance | Path | Killed / injured |
|---|---|---|---|---|
| Jun 2, 1998 | F4 | 12 mi | 36.5 mi | 0 / 5 |
| Jul 11, 1976 | F3 | 14 mi | 11.8 mi | 1 / 17 |
| Oct 2, 2018 | EF2 | 17 mi | 1.56 mi | 0 / 0 |
| Jun 2, 1998 | F2 | 24 mi | 15 mi | 0 / 0 |
| Aug 15, 1997 | F2 | 16 mi | 3.5 mi | 0 / 2 |
| May 22, 1983 | F2 | 23 mi | 38 mi | 0 / 10 |
| May 12, 1980 | F2 | 23 mi | 2.2 mi | 0 / 0 |
| Jun 4, 1975 | F2 | 25 mi | 45.3 mi | 0 / 0 |
| May 13, 1956 | F2 | 13 mi | 0.1 mi | 0 / 1 |
| May 30, 1953 | F2 | 16 mi | 1.9 mi | 0 / 0 |
| May 11, 1951 | F2 | 5 mi | 8 mi | 0 / 1 |
| Mar 16, 2025 | EF1 | 22 mi | 1.08 mi | 0 / 0 |
The strongest 12 of 48, by rating and then by deaths. Ratings before February 2007 are on the original Fujita scale.
Hail in Boswell
The Storm Prediction Center has 17 hail reports within 10 miles of Boswell since 1977, made on 15 separate days. Of these, 12 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 March 23, 2011. The most recent report is from May 29, 2024. July has the most reports, 8.
Source: NOAA Storm Prediction Center severe weather reports, data through 2025.
Weather by month in Boswell
The nearest NOAA station with 1991–2020 climate normals is Laurel Summit, PA, 4 miles west of Boswell at 2,730 feet. July is the warmest, with an average high of 75°F and low of 58°F; January is the coolest, at 31°F and 14°F. June is the wettest at 5.9 inches of precipitation on average and February the driest at 3.5 inches; the year adds up to 56.5 inches over 129 days with at least a tenth of an inch. June to November, the hurricane season months, bring 52% of the year's precipitation (29.1 of 56.5 inches); the other six months are drier. September has brought the most of the 12 tropical systems that passed within 75 miles (6); a normal September there has highs of 68°F and 4.8 inches of precipitation. Highs of 90°F are rare: fewer than one day a year on average. Lows fall below freezing on about 146 nights a year. Snowfall averages 142.2 inches a year, most of it in January. That 56.5 inches is more than at 147 of the 148 Pennsylvania stations used on this site (99%). Hollsopple, 6 miles northeast, has its own station (Johnstown Cambria Co Airport, PA): 41.2 inches a year, 15.3 less than here, and a July average high of 79°F against 75°F.
| Month | High °F | Low °F | Precip. in | Days ≥ 0.1" | Snow in |
|---|---|---|---|---|---|
| Jan | 31 | 14 | 4.4 | 13 | 38.6 |
| Feb | 34 | 16 | 3.5 | 11 | 37.5 |
| Mar | 43 | 23 | 4.7 | 11 | 21.5 |
| Apr | 56 | 34 | 4.9 | 11 | 6.9 |
| May | 65 | 45 | 5.5 | 13 | 0.3 |
| Jun | 71 | 53 | 5.9 | 11 | 0.0 |
| Jul | 75 | 58 | 5.1 | 11 | 0.0 |
| Aug | 74 | 57 | 4.8 | 9 | 0.0 |
| Sep | 68 | 51 | 4.8 | 8 | 0.0 |
| Oct | 58 | 39 | 4.2 | 10 | 2.4 |
| Nov | 46 | 29 | 4.3 | 9 | 8.1 |
| Dec | 35 | 20 | 4.4 | 11 | 26.9 |
| Year | 55 | 37 | 56.5 | 129 | 142.2 |
Averages for 1991–2020 at Laurel Summit, PA (2,730 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 Boswell
Since 1996, the National Weather Service has logged 118 flood, rain, thunderstorm wind and lightning events that began within 10 miles of Boswell: 99 thunderstorm wind reports, 11 flash floods and 8 floods. None is recorded as killing or injuring anyone; the NWS estimated $716,000 in property and crop damage. The strongest thunderstorm gust on record here was 81 mph, on August 7, 2013. Of the 788 Pennsylvania cities on this site with a flash flood on record, 188 have had fewer than Boswell.
June 3, 2016: flash flood 9 miles from the centre of Boswell — $300,000 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
Somerset County, which includes Boswell, has been named in 21 federal disaster or emergency declarations since 1972, 14 of them major disasters (by incident: 6 floods, 5 snowstorms, 4 hurricanes, 4 severe storms). The latest major disaster declaration was Covid-19 Pandemic, on March 30, 2020. FEMA's National Risk Index gives Somerset County a Relatively Low rating for natural hazard risk overall; by hazard: Relatively Moderate for inland flooding, strong wind and lightning; Relatively Low for hurricanes, tornadoes and hail; Very Low for heat waves. It models the county's expected loss from all 18 hazards it covers at $21.9 million a year, the 42nd highest of 67 Pennsylvania counties; of the hazards above, the largest share, $18.0 million (82%), 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.