Dayville, CT Live Doppler Radar
Live radar for Dayville, Windham County: every NWS radar combined, rain, snow and ice colors, flash-flood risk, storm tracks and official warnings.
What weather hits Dayville?
Since 1996, the National Weather Service has logged damaging thunderstorm winds on 90 days in the Windham forecast zone and Windham County — the most common reported hazard around Dayville, mostly in July and August. Next come heavy snow & winter storms (83 days) and high winds (19 days).
| Hazard | Days reported | Most recent | Worst on record |
|---|---|---|---|
| Damaging thunderstorm winds | 90 | May 2026 | Jun 26, 2024 · 1 death · $500 damage |
| Heavy snow & winter storms | 83 | Feb 2026 | Dec 7, 1996 · $1.0 million damage |
| High winds | 19 | Dec 2025 | Oct 29, 2012 · $438,000 damage |
| Flooding | 12 | Sep 2023 | Oct 15, 2005 · 1 death · $600,000 damage |
| Flash flooding | 9 | Jun 2024 | Aug 12, 2016 · $100,000 damage |
| Lightning casualties & damage | 8 | Jun 2023 | Aug 12, 2016 · $15,000 damage |
| Excessive heat | 4 | Jul 2018 | — |
| Hurricanes & tropical storms | 2 | Aug 2020 | Aug 28, 2011 · $20 million 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 Windham forecast zone and Windham County; damage is as reported, not adjusted for inflation.
How much snow does Dayville get?
A normal year brings about 39 inches of snow to Dayville, based on NOAA's 1991–2020 climate normals for the W Thompson Lake weather station 7 miles away. The snowiest month is usually February (11.6 in).
| Oct | Nov | Dec | Jan | Feb | Mar | Apr | May |
|---|---|---|---|---|---|---|---|
| 0.2 | 0.9 | 6.5 | 10.6 | 11.6 | 7.2 | 1.5 | 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 Dayville?
The closest NEXRAD Doppler radar is KBOX (Boston, MA), about 39 miles east-northeast. 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 Dayville | View |
|---|---|---|---|
| KBOX Boston, MA | 39 mi east-northeast | 2,600 ft | Excellent — the lowest scan sees close to the ground |
| KOKX Upton, NY | 85 mi southwest | 7,500 ft | Fair — the beam can pass over shallow snow and low-level rotation |
| KENX Albany, NY | 123 mi west-northwest | 13,200 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 Dayville
Since 1950, NOAA has recorded 36 tornadoes within 25 miles of Dayville, 8 of them EF2/F2 or stronger. Most came in August and September. The strongest was an EF3 on June 1, 2011, which passed about 19 miles north-northwest of town and caused 3 deaths. The most recent was an EF1 on June 26, 2024, which passed about 23 miles east of town.
Hail: 106 reports of 1-inch or larger hail within 25 miles since 1955, 4 of them 2 inches or more; the largest was 2.75-inch hail on June 30, 1998.
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 Dayville'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.
Dayville radar FAQ
Where is the nearest weather radar to Dayville, CT?
KBOX (Boston, MA), about 39 miles east-northeast. KOKX (Upton, NY) is 85 miles away and also covers the area.
Does radar show snow in Dayville?
Yes. TALON colors snow blue, a rain–snow mix pink and freezing rain purple using NOAA's precipitation-type analysis. Over Dayville the lowest scan from KBOX is about 2,600 ft up.
Is TALON's radar for Dayville 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 Dayville, follow it right away — see watch vs. warning.
Radar for nearby towns
- Danielson, CT radar 3 mi
- Jewett City, CT radar 17 mi
- Norwich, CT radar 23 mi
- Stonington, CT radar 35 mi
- New London, CT radar 37 mi
- Groton, CT radar 37 mi
- Hartford, CT radar 42 mi
- Middletown, CT radar 45 mi
- New Britain, CT radar 48 mi
- Meriden, CT radar 52 mi