Duncannon, PA Live Doppler Radar
Live radar for Duncannon, Perry County: every NWS radar combined, rain, snow and ice colors, flash-flood risk, storm tracks and official warnings.
What weather hits Duncannon?
Since 1996, the National Weather Service has logged damaging thunderstorm winds on 134 days in the Perry forecast zone and Perry County — the most common reported hazard around Duncannon, mostly in June and July. Next come heavy snow & winter storms (54 days) and flooding (19 days).
| Hazard | Days reported | Most recent | Worst on record |
|---|---|---|---|
| Damaging thunderstorm winds | 134 | Jun 2026 | Jun 9, 2025 · $40,000 damage |
| Heavy snow & winter storms | 54 | Jan 2026 | Mar 4, 2001 · $4,000 damage |
| Flooding | 19 | Jul 2025 | May 29, 2009 · $15,000 damage |
| High winds | 18 | Apr 2021 | Nov 13, 2003 · 2 deaths |
| Flash flooding | 18 | Jun 2015 | Sep 6, 1996 · 1 death |
| Excessive heat | 9 | Jul 2025 | Jul 5, 1999 · 2 deaths |
| Ice storms & sleet | 5 | Feb 2008 | — |
| Extreme cold & wind chill | 3 | Jan 2025 | — |
Source: NOAA NCEI Storm Events Database, 1996–2026 (the latest year is partial). A "day" is a date with at least one report in the Perry forecast zone and Perry County; damage is as reported, not adjusted for inflation.
How much snow does Duncannon get?
A normal year brings about 24 inches of snow to Duncannon, based on NOAA's 1991–2020 climate normals for the Harrisburg 1 Ne weather station 11.4 miles away. The snowiest month is usually February (7.7 in).
| Oct | Nov | Dec | Jan | Feb | Mar | Apr | May |
|---|---|---|---|---|---|---|---|
| 0.0 | 0.7 | 4.2 | 6.4 | 7.7 | 4.5 | 0.4 | 0.0 |
Normal snowfall in inches. TALON Pro compares this season's snow at your location with these normals as winter goes on.
Which radars cover Duncannon?
The closest NEXRAD Doppler radar is KCCX (State College, PA), about 63 miles northwest. Radar beams climb as they travel, so the height of the lowest scan over town decides how low in a storm the radar can see.
| Radar | Distance | Lowest beam over Duncannon | View |
|---|---|---|---|
| KCCX State College, PA | 63 mi northwest | 4,900 ft | Good — most storms and steady rain or snow show clearly |
| KLWX Sterling, MD | 101 mi south-southwest | 9,800 ft | Fair — the beam can pass over shallow snow and low-level rotation |
| KBGM Binghamton, NY | 136 mi north-northeast | 15,500 ft | Limited — the beam overshoots the lowest part of storms |
Beam height is the center of the 0.5° scan above the radar, with standard refraction. Mountains near a radar can block it further.
Tornado & hail history near Duncannon
Since 1950, NOAA has recorded 59 tornadoes within 25 miles of Duncannon, 14 of them EF2/F2 or stronger. Most came in July and August. The strongest was an F3 on July 14, 2004, which passed about 25 miles east-southeast of town. The most recent was an EF1 on August 9, 2024, which passed about 11 miles southeast of town.
Hail: 125 reports of 1-inch or larger hail within 25 miles since 1955, 5 of them 2 inches or more; the largest was 2.75-inch hail on June 1, 1976.
Source: NOAA Storm Prediction Center — tornadoes 1950–2025, hail 1955–2025. Distances are to each tornado's track; ratings before February 2007 use the original Fujita scale.
On TALON you get Duncannon's live radar loop, rain/snow/ice colors, flash-flood risk, storm tracks with arrival times and NWS warnings free; close-up radar and rotation detection are part of TALON Pro.
Duncannon radar FAQ
Where is the nearest weather radar to Duncannon, PA?
KCCX (State College, PA), about 63 miles northwest. KLWX (Sterling, MD) is 101 miles away and also covers the area.
Does radar show snow in Duncannon?
Yes. TALON colors snow blue, a rain–snow mix pink and freezing rain purple using NOAA's precipitation-type analysis. Over Duncannon the lowest scan from KCCX is about 4,900 ft up.
Is TALON's radar for Duncannon free?
Yes — the US radar loop, rain/snow/ice colors, flash-flood risk, storm tracks and NWS warnings are free in any browser. Close-up radar, rotation detection and longer forecasts are part of TALON Pro.
Should I rely on radar for my safety?
No app replaces official warnings. When the National Weather Service issues a warning for Duncannon, follow it right away — see watch vs. warning.
Radar for nearby towns
- Marysville, PA radar 6 mi
- Newport, PA radar 8 mi
- Bloomfield, PA radar 9 mi
- Millersburg, PA radar 11 mi
- Harrisburg, PA radar 11 mi
- Wormleysburg, PA radar 11 mi
- Camp Hill, PA radar 12 mi
- Lemoyne, PA radar 12 mi
- Penbrook, PA radar 12 mi
- Shiremanstown, PA radar 13 mi