Juniata County

Every recorded tornado

1. Injuries and deaths are for the tornado’s whole path, which may extend beyond the county. Deaths recorded within Juniata 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. Aug 20, 1999Flash Flood$500,000
   National Weather Service narrative

   Heavy rain fell in a band from eastern Juniata County northeast across Selinsgrove and Lewisburg to Muncy. Rainfall totals of 8 to 9 inches were reported in the Richfield area. Several trailers were washed away, 30 homes and 4 businesses were damaged along with a number of roads and bridges. A nursery lost about $100,000 worth of plants along Mahantango Creek.

2. Aug 12, 2017Tornado$500,000
   National Weather Service narrative

   The tornado touched down on the northeast side of Mcalisterville, PA, near the Juniata Mennonite School. Damage included a flipped tractor trailer, snapped pine trees, and a long swatch of snapped and uprooted trees. The main school building roof was lifted off its base. There was sporadic tree damage all the way to Dunn Valley Road. Along Dunn Valley Road there was a flipped travel trailer, damaged trees, and a damaged house. Farther along the track, it damaged a bus shed and a tool shed. There was also sporadic tree damage in this area. Further to the south and east, along Maze and Blackdog Roads, there was focused swaths of tree damage along the north side of the road. Near the…

3. Jun 16, 2022Thunderstorm Wind$50,000
   National Weather Service narrative

   A severe thunderstorm producing winds estimated to have been 100-110 mph produced considerable straight-line wind damage between Mifflintown and Thompsontown. The strongest downburst winds associated with the storm occurred at the Centre Lutheran Church, where the roof of the church was peeled off from the north. A metal cross on the church's steeple was also destroyed, while a pine tree adjacent to the church had a piece of its trunk snapped off. The storm then continued|southeastward across the Juniata River, producing tree damage near the PFBC Vandyke Hatchery. Additional tree damage was then found farther southwest along Highway 333 immediately southeast of Mexico and east of…

4. Jan 6, 2024Winter Weather, Juniata$50,000
   National Weather Service narrative

   A winter storm produced 4 to 5 inches of snowfall in Juniata County in the morning and afternoon hours of January 6 with additional light accumulations continuing into January 7, 2024. Two separate accidents on the westbound lane of US Route 322 involved a total of 13 vehicles and led to eight people being transported, with an additional accident elsewhere on US Route 322 leaving one vehicle overturned.

5. May 23, 2011Tornado$50,000
   National Weather Service narrative

   The NWS State College confirmed a EF2 tornado near Kellerville in Juniata County. The tornado touched down around 1723 EDT about 1/4 mile west of 1332 Kellerville Road and traveled east approximately 5 miles before lifting just east of 7 Stars Road around 1731 EDT.||The tornado laid a pattern in a hay field before crossing Kellerville Road where it toppling a concrete silo which fell on and obliterated a cow barn, killing 7 dairy cows. The house south of the barn at 1332 Kellerville Road had the entire roof and attic portion blown off and was shifted on its foundation. Several outbuildings and sheds on the property were also obliterated. The debris and tornado moved southeastward…

6. Apr 19, 2019Tornado$25,000
   National Weather Service narrative

   A National Weather Service survey team confirmed a tornado near Krause in Juniata County Pennsylvania on April 19, 2019.||The tornado touched down near near the intersection of Black Log Road and Old Barn Lane, and tracked northeastward up the valley for approximately one and one quarter miles.||Most of the damage was done to trees, where numerous trees were snapped or uprooted. There was damage to the roof of one home and one barn before the tornado lifted near the intersection of Black Log Road and Smith Road. Peak winds were estimated around 105 mph.

7. Apr 28, 2011Tornado$25,000
   National Weather Service narrative

   The NWS in State College confirmed an EF1 tornado near East Waterford in Juniata County. The tornado occurred between 0253 and 0300 AM EDT on 28 April 2011. The EF1 tornado first produced damage on the east side of East Waterford, then skirted northeast along SR 75 producing sporadic damage along a well-defined path from Honey Grove to Seven Pines in Spruce Hill Township. The Hancock farm in Honey Grove sustained the most significant damage, as the farm house roof and several barns and farm sheds were destroyed. Numerous tree damage was observed along the tornado track which covered approximately 8 miles. Two barns were also damaged along Laurel Run near SR 850 at Burnt Church…

8. Aug 13, 1999Thunderstorm Wind$20,000
   National Weather Service narrative

   Trees down and a roof off of a chicken house.

9. Jul 21, 2003Tornado$20,000
   National Weather Service narrative

   The National Weather Service in State College and Juniata county emergency management officials surveyed storm damage and interviewed residents in central Juniata county. The team determined that an F1 tornado with peak winds of up to 80 mph touched down in central Juniata county near East Salem from about 5:00 pm to 5:05 pm Monday July 21 2003. Extensive tree damage occurred along the tornado path. The roof of a home was lifted off as well as partial damage to roofs of several barns. In one location a tree limb was driven into a barn door. Eyewitnesses described a roaring horizontal wind with blinding visibility lasting only a minute or so at the time damage occurred. The tornado…

10. Dec 12, 2000High Wind, Juniata$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

106°FJul 23, 2011

All-time low

−17°FJan 20, 1994

Warmest night

80°FJul 29, 1941

Coldest day

1°FJan 19, 1994

Wettest day

5.40 inSep 18, 2004

Snowiest day

20.0 in2 times, most recently Mar 13, 1993

Hottest year

2012mean 54.2°F

Coldest year

1981mean 47.0°F

Wettest year

201861.63 in

Driest year

198025.77 in

Snowiest season

81.2 in1993-94

Station Lewistown (USC00364992), 460 ft elevation, 12.7 miles from the population centre. Daily records from 1938 to October 22, 2026; 99.1% 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 USC00364992.
• 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.