Colchester, CT Live Doppler Radar
Live radar for Colchester, New London County: every NWS radar combined, rain, snow and ice colors, flash-flood risk, storm tracks and official warnings.
What weather hits Colchester?
Since 1996, the National Weather Service has logged damaging thunderstorm winds on 67 days in the Northern New London forecast zone and New London County — the most common reported hazard around Colchester, mostly in July and June. Next come heavy snow & winter storms (63 days) and flash flooding (42 days).
| Hazard | Days reported | Most recent | Worst on record |
|---|---|---|---|
| Damaging thunderstorm winds | 67 | Jun 2026 | Sep 6, 2017 · 1 death · $15,000 damage |
| Heavy snow & winter storms | 63 | Feb 2026 | — |
| Flash flooding | 42 | Jan 2024 | Sep 2, 2021 · $706,000 damage |
| Flooding | 25 | Sep 2021 | Mar 14, 2010 · 1 death |
| High winds | 16 | Dec 2025 | Oct 29, 2012 · $1.0 million damage |
| Lightning casualties & damage | 16 | Jul 2025 | Jun 19, 1997 · 1 death |
| Blizzards | 7 | Jan 2022 | — |
| Excessive heat | 4 | Jul 2011 | — |
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 Northern New London forecast zone and New London County; damage is as reported, not adjusted for inflation.
How much snow does Colchester get?
A normal year brings about 28 inches of snow to Colchester, based on NOAA's 1991–2020 climate normals for the Norwich Public Utility Plt weather station 14.3 miles away. The snowiest month is usually January (9.0 in).
| Oct | Nov | Dec | Jan | Feb | Mar | Apr | May |
|---|---|---|---|---|---|---|---|
| 0.0 | 0.3 | 5.6 | 9.0 | 7.1 | 5.0 | 0.8 | 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 Colchester?
The closest NEXRAD Doppler radar is KOKX (Upton, NY), about 56 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 Colchester | View |
|---|---|---|---|
| KOKX Upton, NY | 56 mi south-southwest | 4,200 ft | Good — most storms and steady rain or snow show clearly |
| KBOX Boston, MA | 67 mi east-northeast | 5,300 ft | Good — most storms and steady rain or snow show clearly |
| KENX Albany, NY | 113 mi northwest | 11,600 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 Colchester
Since 1950, NOAA has recorded 36 tornadoes within 25 miles of Colchester, 9 of them EF2/F2 or stronger. Most came in August and July. The strongest was an F3 on August 21, 1951, which touched down about 9 miles west of town. The most recent was an EF1 on August 18, 2023, which touched down about 14 miles northeast of town.
Hail: 117 reports of 1-inch or larger hail within 25 miles since 1955, 11 of them 2 inches or more; the largest was 2.75-inch hail on June 20, 1995.
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 Colchester'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.
Colchester radar FAQ
Where is the nearest weather radar to Colchester, CT?
KOKX (Upton, NY), about 56 miles south-southwest. KBOX (Boston, MA) is 67 miles away and also covers the area.
Does radar show snow in Colchester?
Yes. TALON colors snow blue, a rain–snow mix pink and freezing rain purple using NOAA's precipitation-type analysis. Over Colchester the lowest scan from KOKX is about 4,200 ft up.
Is TALON's radar for Colchester 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 Colchester, follow it right away — see watch vs. warning.
Radar for nearby towns
- Norwich, CT radar 13 mi
- Middletown, CT radar 17 mi
- Jewett City, CT radar 18 mi
- New London, CT radar 21 mi
- Hartford, CT radar 22 mi
- Groton, CT radar 22 mi
- Meriden, CT radar 24 mi
- New Britain, CT radar 24 mi
- Stonington, CT radar 28 mi
- Danielson, CT radar 28 mi