Jefferson, PA Live Doppler Radar
Live radar for Jefferson, York County: every NWS radar combined, rain, snow and ice colors, flash-flood risk, storm tracks and official warnings.
What weather hits Jefferson?
Since 1996, the National Weather Service has logged damaging thunderstorm winds on 250 days in the York forecast zone and York County — the most common reported hazard around Jefferson, mostly in July and June. Next come flash flooding (71 days) and heavy snow & winter storms (68 days).
| Hazard | Days reported | Most recent | Worst on record |
|---|---|---|---|
| Damaging thunderstorm winds | 250 | Jun 2026 | Jun 6, 2026 · 1 death |
| Flash flooding | 71 | Jul 2025 | May 9, 2004 · 2 deaths · $5.5 million damage |
| Heavy snow & winter storms | 68 | Feb 2026 | Oct 29, 2011 · 1 death |
| Flooding | 43 | Feb 2026 | Sep 7, 2011 · 1 death · $4.7 million damage |
| High winds | 23 | Dec 2025 | Nov 13, 2003 · 1 death |
| Excessive heat | 11 | Jul 2025 | — |
| Ice storms & sleet | 7 | Feb 2008 | — |
| Lightning casualties & damage | 6 | Jul 2025 | Jun 19, 2007 · 1 death |
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 York forecast zone and York County; damage is as reported, not adjusted for inflation.
How much snow does Jefferson get?
A normal year brings about 29 inches of snow to Jefferson, based on NOAA's 1991–2020 climate normals for the Spring Grove weather station 4.1 miles away. The snowiest month is usually January (9.8 in).
| Oct | Nov | Dec | Jan | Feb | Mar | Apr | May |
|---|---|---|---|---|---|---|---|
| 0.0 | 0.6 | 3.8 | 9.8 | 9.4 | 5.0 | 0.2 | 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 Jefferson?
The closest NEXRAD Doppler radar is KLWX (Sterling, MD), about 67 miles south-southwest. 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 Jefferson | View |
|---|---|---|---|
| KLWX Sterling, MD | 67 mi south-southwest | 5,400 ft | Good — most storms and steady rain or snow show clearly |
| KCCX State College, PA | 98 mi northwest | 9,300 ft | Fair — the beam can pass over shallow snow and low-level rotation |
| KDOX Dover AFB, DE | 101 mi southeast | 9,800 ft | Fair — the beam can pass over shallow snow and low-level rotation |
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 Jefferson
Since 1950, NOAA has recorded 81 tornadoes within 25 miles of Jefferson, 23 of them EF2/F2 or stronger. Most came in June and April. The strongest was an F3 on April 5, 1952, which passed about 4 miles northwest of town. The most recent was an EF0 on June 5, 2024, which touched down about 16 miles south-southwest of town.
Hail: 176 reports of 1-inch or larger hail within 25 miles since 1955, 11 of them 2 inches or more; the largest was 4.00-inch hail on July 30, 1999.
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 Jefferson'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.
Jefferson radar FAQ
Where is the nearest weather radar to Jefferson, PA?
KLWX (Sterling, MD), about 67 miles south-southwest. KCCX (State College, PA) is 98 miles away and also covers the area.
Does radar show snow in Jefferson?
Yes. TALON colors snow blue, a rain–snow mix pink and freezing rain purple using NOAA's precipitation-type analysis. Over Jefferson the lowest scan from KLWX is about 5,400 ft up.
Is TALON's radar for Jefferson 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 Jefferson, follow it right away — see watch vs. warning.
Radar for nearby towns
- Spring Grove, PA radar 5 mi
- Glen Rock, PA radar 6 mi
- Hanover, PA radar 7 mi
- Loganville, PA radar 8 mi
- Jacobus, PA radar 8 mi
- Shrewsbury, PA radar 9 mi
- Abbottstown, PA radar 9 mi
- McSherrystown, PA radar 9 mi
- New Freedom, PA radar 9 mi
- West York, PA radar 11 mi