Snyder County

Every recorded tornado

1. Injuries and deaths are for the tornado’s whole path, which may extend beyond the county. Deaths recorded within Snyder County: 0.
2. Weak tornadoes were under-recorded before Doppler radar coverage became national in the early 1990s, so earlier decades read low. Ratings use the Fujita scale before February 2007 and the Enhanced Fujita scale after.

Storm Prediction Center severe weather database, 1950 to 2025.

Every storm within 100 miles

1. Tropical storms and hurricanes (34 kt or more, still tropical) at closest approach. Post-tropical remnants with gale-force winds are listed but not counted. Direct: track within 50 miles; near: within 100 miles. Distance is measured to the county boundary for counties and to the city centre for cities, using positions interpolated hourly between HURDAT2 fixes.

National Hurricane Center HURDAT2, 1851 to 2025.

Smoke overhead

1. A smoke day is a date on which a smoke plume traced by NOAA Hazard Mapping System analysts from satellite imagery covered this place's point (the county's population centre or the city centre). Counts here are of medium or heavy smoke. Since 2018 analysts have often drawn light smoke as one area over most of the continent, so light-smoke counts are not comparable from year to year. The plumes show smoke anywhere in the air above, not air quality at the ground, and smoke hidden by cloud is missed.

NOAA Hazard Mapping System smoke analysis, 2011 to 2026, retrieved October 30, 2026.

Claims by ZIP code

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).

OpenFEMA NFIP Redacted Claims v3, refreshed August 4, 2026. NOAA Storm Events through 2026.

River crests

River gauges

1. Crests are the highest and the recent crests the National Weather Service lists for each river gauge in the county that has a flood stage, not every flood. Flood categories use each gauge's current flood stages; crests from before levees, dams or channel changes may not be comparable. Crests measured on an old datum are left out of the rankings.

NOAA National Water Prediction Service gauge records, retrieved October 30, 2026.

1. The Palmer Drought Severity Index is computed by NOAA each month from the county's average temperature and precipitation, relative to the county's own climate. Zero is normal; -3 or lower is severe drought and -4 or lower extreme drought. It describes the long-term balance of moisture, not water supply or crop losses.

NOAA NCEI nClimDiv county Palmer Drought Severity Index, 1895 to September 2026, issued October 6, 2026.

Every earthquake of magnitude 4 or more within 50 miles

1. Earthquakes of magnitude 2.5 or more in the USGS Comprehensive Catalog since 1900. Within 50 miles means the epicentre lies within 50 miles of the county boundary (or inside the county).
2. Small earthquakes were under-recorded before the modern seismic networks of the 1970s and are still missed in remote areas, so early decades read low. Magnitudes are as the catalogue reports them and mix scales (moment, local and body-wave).

USGS ANSS Comprehensive Earthquake Catalog, 1900 to present, retrieved October 30, 2026.

Costliest events since 1996

1. Sep 7, 2011Flood$230,000
   National Weather Service narrative

   Widespread small stream flooding was reported across Snyder County as a result of heavy rainfall from the remnants of Tropical Storm Lee. Flooding was reported on Middle Creek in the borough of Middleburg. Flooding was also reported in the borough of Selinsgrove. Ten roads were closed across the county due to high water. A preliminary total of 23 buildings were destroyed in Synder County, with 382 suffering major damage and 59 suffering minor damage. A total of 799 structures impacted were eimpacted during the event. Damages were estimated at $229,892 for public facilities in the county.

2. Aug 20, 1999Flash Flood$100,000
3. Aug 4, 2017Thunderstorm Wind$55,000
   National Weather Service narrative

   A severe thunderstorm produced very strong straight-line winds estimated near 90 mph, damaging a garage, a couple of barns, some trees and a cornfield north of Port Treverton in Snyder County.

4. Sep 6, 1999Flash Flood$30,000
   National Weather Service narrative

   Heavy rains from Dennis caused flooding of roads, small streams, and basements in the early morning hours across eastern sections of the county. Areas from Middleburg, east to the Susquehanna River, were hard hit. Campers on the banks of Penns Creek had to be moved to safety. Near Kratzerville, about 30 people were moved to higher ground and campground workers attempted to move some trailers. Several trailers were carried away by the floodwaters. In addition, campers in Kreamer were evacuated when a tributary of Middle Creek flooded. Route 15, the major north/south highway to Harrisburg, was closed due to flooding.

5. Jul 9, 2015Tornado$20,000
   National Weather Service narrative

   A National Weather Service storm survey team confirmed that an EF0 tornado touched down on the south side of Selinsgrove near the intersection of Sand Hill Road and South Market Street. The tornado traveled northeastward across the Isle of Que before lifting as it encountered the Susquehanna River near the intersection of East Pine Street and Front Street. There was some tree and crop damage, with some trees being snapped and others uprooted. Maximum wind speed was around 70 mph, classifying this as an EF0 tornado.

6. Sep 8, 2021Tornado$20,000
   National Weather Service narrative

   An EF0 tornado touched down along Neitz Valley Road near Bressler Lane, to the southeast of Freeburg, during the early evening of September 8, 2021. The tornado flattened part of a cornfield before tracking southeastward for a little under 1.5 miles. It produced estimated maximum winds of around 80 mph, and had a maximum path width of approximately 30 yards. As the tornado tracked eastward, it snapped and uprooted several trees along and just north of Neitz Valley Road and Produce Road. Trees were also uprooted in a heavily wooded area just north of Inch Hill Road before the tornado lifted.

7. Apr 29, 2025Thunderstorm Wind$20,000
   National Weather Service narrative

   A line of severe thunderstorms producing wind gusts estimated at 70 mph knocked down numerous trees and wires throughout Beavertown.

8. Apr 29, 2025Thunderstorm Wind$15,000
   National Weather Service narrative

   A line of severe thunderstorms producing wind gusts estimated at 70 mph knocked down numerous trees and power lines along US-15.

9. Sep 8, 2021Thunderstorm Wind$15,000
   National Weather Service narrative

   A severe thunderstorm producing winds estimated near 60 mph knocked down numerous trees and wires along Produce Road, including two trees onto a house.

10. Dec 12, 2000High Wind, Snyder$14,000

1. Storm Events records before 1996 cover only tornadoes, thunderstorm wind and hail. Damage figures are as reported by the National Weather Service at the time, not adjusted for inflation.

NOAA NCEI Storm Events Database, 1950 to 2026, issued October 26, 2026.

All-time high

105°F3 times, most recently Jul 17, 1988

All-time low

−27°FJan 14, 1912

Warmest night

77°FJul 12, 1916

Coldest day

0°FJan 20, 1994

Wettest day

6.22 inSep 18, 2004

Snowiest day

28.0 inApr 11, 1894

Hottest year

1913mean 53.8°F

Coldest year

1978mean 48.1°F

Wettest year

201170.02 in

Driest year

193024.32 in

Snowiest season

84.5 in1995-96

Station Selinsgrove 2 S (USC00367931), 420 ft elevation, 6.2 miles from the population centre. Daily records from 1894 to October 22, 2026; 99.7% of days in the last 30 years are complete. Records at a single station can differ from a city’s official threaded record, which may combine several stations.

NOAA NCEI Global Historical Climatology Network Daily.

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).

OpenFEMA Disaster Declarations Summaries, retrieved October 30, 2026. Statewide declarations are not listed.

Neighbouring counties

• Tornadoes NOAA Storm Prediction Center severe weather database, through 2025.
• Tropical cyclones NOAA National Hurricane Center HURDAT2 (Atlantic; Northeast and Central Pacific), through 2025.
• Wildfire USGS/USFS Monitoring Trends in Burn Severity, through 2026.
• Storm events NOAA NCEI Storm Events Database, through 2026.
• Flood insurance OpenFEMA NFIP Redacted Claims v3, refreshed August 4, 2026.
• Declarations OpenFEMA Disaster Declarations Summaries v2, retrieved October 30, 2026.
• Weather records NOAA NCEI Global Historical Climatology Network Daily, station USC00367931.
• River crests NOAA National Weather Service, National Water Prediction Service river gauges, retrieved October 30, 2026.
• Drought NOAA NCEI nClimDiv county Palmer Drought Severity Index, through September 2026.
• Smoke NOAA NESDIS Hazard Mapping System smoke analysis, retrieved October 30, 2026.
• Earthquakes USGS ANSS Comprehensive Earthquake Catalog (ComCat), retrieved October 30, 2026.

Joins, thresholds and known limits are set out in the methodology. Found an error? Report it. Page built October 30, 2026.