Groton, VT Live Doppler Radar
Live radar for Groton, Caledonia County: every NWS radar combined, rain, snow and ice colors, flash-flood risk, storm tracks and official warnings.
What weather hits Groton?
Since 1996, the National Weather Service has logged heavy snow or a winter storm on 148 days in the Caledonia forecast zone and Caledonia County — the most common reported hazard around Groton, mostly in March and February. Next come damaging thunderstorm winds (74 days) and flash flooding (28 days).
| Hazard | Days reported | Most recent | Worst on record |
|---|---|---|---|
| Heavy snow & winter storms | 148 | Jan 2026 | Mar 6, 2011 · 1 death · $40,000 damage |
| Damaging thunderstorm winds | 74 | Jun 2025 | May 9, 2000 · $200,000 damage |
| Flash flooding | 28 | Jun 2026 | Jul 10, 2024 · 1 death · $3.0 million damage |
| Extreme cold & wind chill | 27 | Feb 2026 | — |
| Flooding | 27 | Oct 2019 | Aug 28, 2011 · $5.0 million damage |
| High winds | 16 | Dec 2022 | Apr 16, 2007 · $200,000 damage |
| Excessive heat | 9 | Jun 2025 | Mar 17, 2012 · $750,000 damage |
| Lightning casualties & damage | 8 | Jul 2014 | May 11, 2007 · $150,000 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 Caledonia forecast zone and Caledonia County; damage is as reported, not adjusted for inflation.
How much snow does Groton get?
A normal year brings about 66 inches of snow to Groton, based on NOAA's 1991–2020 climate normals for the South Newbury weather station 13.2 miles away. The snowiest month is usually January (17.4 in).
| Oct | Nov | Dec | Jan | Feb | Mar | Apr | May |
|---|---|---|---|---|---|---|---|
| 0.7 | 1.3 | 17.0 | 17.4 | 13.1 | 13.4 | 2.8 | 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 Groton?
The closest NEXRAD Doppler radar is KCXX (Burlington, VT), about 52 miles west-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 Groton | View |
|---|---|---|---|
| KCXX Burlington, VT | 52 mi west-northwest | 3,700 ft | Good — most storms and steady rain or snow show clearly |
| KGYX Portland, ME | 99 mi east-southeast | 9,500 ft | Fair — the beam can pass over shallow snow and low-level rotation |
| KENX Albany, NY | 147 mi southwest | 17,500 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 Groton
Since 1950, NOAA has recorded 9 tornadoes within 25 miles of Groton, 1 of them EF2/F2 or stronger. Most came in June and August. The strongest was an F2 on August 11, 1966, which passed about 16 miles south-southeast of town. The most recent was an EF0 on June 18, 2018, which passed about 11 miles east-southeast of town.
Hail: 101 reports of 1-inch or larger hail within 25 miles since 1955, 2 of them 2 inches or more; the largest was 2.00-inch hail on May 26, 2011.
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 Groton'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.
Groton radar FAQ
Where is the nearest weather radar to Groton, VT?
KCXX (Burlington, VT), about 52 miles west-northwest. KGYX (Portland, ME) is 99 miles away and also covers the area.
Does radar show snow in Groton?
Yes. TALON colors snow blue, a rain–snow mix pink and freezing rain purple using NOAA's precipitation-type analysis. Over Groton the lowest scan from KCXX is about 3,700 ft up.
Is TALON's radar for Groton 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 Groton, follow it right away — see watch vs. warning.
Radar for nearby towns
- Barre, VT radar 15 mi
- Montpelier, VT radar 19 mi
- Morrisville, VT radar 30 mi
- Johnson, VT radar 37 mi
- Essex Junction, VT radar 49 mi
- Newport, VT radar 50 mi
- South Burlington, VT radar 51 mi
- Winooski, VT radar 52 mi
- Vergennes, VT radar 52 mi
- Burlington, VT radar 55 mi