Radnor, OH Live Doppler Radar
Live radar for Radnor, Delaware County: every NWS radar combined, rain, snow and ice colors, flash-flood risk, storm tracks and official warnings.
What weather hits Radnor?
Since 1996, the National Weather Service has logged damaging thunderstorm winds on 127 days in the Delaware forecast zone and Delaware County — the most common reported hazard around Radnor, mostly in July and June. Next come heavy snow & winter storms (37 days) and flooding (37 days).
| Hazard | Days reported | Most recent | Worst on record |
|---|---|---|---|
| Damaging thunderstorm winds | 127 | Jun 2026 | May 18, 1997 · $100,000 damage |
| Heavy snow & winter storms | 37 | Jan 2026 | Jan 6, 1996 · $500,000 damage |
| Flooding | 37 | May 2026 | Jan 5, 2005 · $20,000 damage |
| Flash flooding | 15 | May 2020 | Jun 15, 2004 · $250,000 damage |
| High winds | 14 | Mar 2026 | Sep 14, 2008 · 1 death · $18 million damage |
| Excessive heat | 5 | Jul 2019 | — |
| Ice storms & sleet | 4 | Feb 2011 | — |
| Extreme cold & wind chill | 3 | Dec 2022 | Feb 1, 1996 · $20,000 damage |
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 Delaware forecast zone and Delaware County; damage is as reported, not adjusted for inflation.
How much snow does Radnor get?
A normal year brings about 26 inches of snow to Radnor, based on NOAA's 1991–2020 climate normals for the Prospect weather station 7.3 miles away. The snowiest month is usually January (8.6 in).
| Oct | Nov | Dec | Jan | Feb | Mar | Apr | May |
|---|---|---|---|---|---|---|---|
| 0.3 | 1.1 | 5.4 | 8.6 | 6.2 | 4.1 | 0.6 | 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 Radnor?
The closest NEXRAD Doppler radar is KILN (Wilmington, OH), about 76 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 Radnor | View |
|---|---|---|---|
| KILN Wilmington, OH | 76 mi south-southwest | 6,400 ft | Fair — the beam can pass over shallow snow and low-level rotation |
| KCLE Cleveland, OH | 98 mi northeast | 9,300 ft | Fair — the beam can pass over shallow snow and low-level rotation |
| KIWX Fort Wayne, IN | 149 mi west-northwest | 18,100 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 Radnor
Since 1950, NOAA has recorded 67 tornadoes within 25 miles of Radnor, 20 of them EF2/F2 or stronger. Most came in May and June. The strongest was an F3 on June 13, 1981, which passed about 15 miles east-northeast of town and caused 4 deaths. The most recent was an EF0 on December 29, 2024, which touched down about 18 miles southwest of town.
Hail: 205 reports of 1-inch or larger hail within 25 miles since 1955, 9 of them 2 inches or more; the largest was 3.00-inch hail on August 10, 1984.
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 Radnor'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.
Radnor radar FAQ
Where is the nearest weather radar to Radnor, OH?
KILN (Wilmington, OH), about 76 miles south-southwest. KCLE (Cleveland, OH) is 98 miles away and also covers the area.
Does radar show snow in Radnor?
Yes. TALON colors snow blue, a rain–snow mix pink and freezing rain purple using NOAA's precipitation-type analysis. Over Radnor the lowest scan from KILN is about 6,400 ft up, so light snow from shallow clouds can be under-shown — check NWS winter alerts too.
Is TALON's radar for Radnor 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 Radnor, follow it right away — see watch vs. warning.
Radar for nearby towns
- Prospect, OH radar 5 mi
- Delaware, OH radar 8 mi
- Richwood, OH radar 8 mi
- Ostrander, OH radar 9 mi
- Ashley, OH radar 10 mi
- Marion, OH radar 15 mi
- Cardington, OH radar 15 mi
- Powell, OH radar 15 mi
- Marysville, OH radar 16 mi
- Sunbury, OH radar 17 mi