Knollcrest, CT Live Doppler Radar
Live radar for Knollcrest, Fairfield County: every NWS radar combined, rain, snow and ice colors, flash-flood risk, storm tracks and official warnings.
What weather hits Knollcrest?
Since 1996, the National Weather Service has logged damaging thunderstorm winds on 172 days in the Northern Fairfield forecast zone and Fairfield County — the most common reported hazard around Knollcrest, mostly in July and August. Next come heavy snow & winter storms (85 days) and flash flooding (82 days).
| Hazard | Days reported | Most recent | Worst on record |
|---|---|---|---|
| Damaging thunderstorm winds | 172 | Jun 2026 | Jun 23, 2011 · 1 death · $8,000 damage |
| Heavy snow & winter storms | 85 | Jan 2026 | — |
| Flash flooding | 82 | Jul 2025 | Aug 18, 2024 · 1 death · $100,000 damage |
| Lightning casualties & damage | 35 | Jul 2020 | May 8, 2010 · 1 death |
| High winds | 24 | Feb 2026 | Oct 29, 2012 · 1 death · $900,000 damage |
| Flooding | 23 | Oct 2025 | Mar 30, 2010 · $2.0 million damage |
| Excessive heat | 8 | Jul 2019 | — |
| Ice storms & sleet | 5 | Feb 2025 | — |
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 Fairfield forecast zone and Fairfield County; damage is as reported, not adjusted for inflation.
How much snow does Knollcrest get?
A normal year brings about 49 inches of snow to Knollcrest, based on NOAA's 1991–2020 climate normals for the Danbury weather station 7.4 miles away. The snowiest month is usually January (15.7 in).
| Oct | Nov | Dec | Jan | Feb | Mar | Apr | May |
|---|---|---|---|---|---|---|---|
| 0.0 | 1.9 | 8.6 | 15.7 | 11.0 | 10.4 | 1.7 | 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 Knollcrest?
The closest NEXRAD Doppler radar is KOKX (Upton, NY), about 54 miles southeast. 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 Knollcrest | View |
|---|---|---|---|
| KOKX Upton, NY | 54 mi southeast | 3,900 ft | Good — most storms and steady rain or snow show clearly |
| KENX Albany, NY | 81 mi north-northwest | 7,000 ft | Fair — the beam can pass over shallow snow and low-level rotation |
| KDIX Philadelphia, NJ | 118 mi south-southwest | 12,400 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 Knollcrest
Since 1950, NOAA has recorded 52 tornadoes within 25 miles of Knollcrest, 11 of them EF2/F2 or stronger. Most came in July and May. The strongest was an F3 on May 24, 1962, which passed about 18 miles east of town and caused 1 death. The most recent was an EF0 on August 12, 2023, which touched down about 7 miles east of town.
Hail: 140 reports of 1-inch or larger hail within 25 miles since 1955, 1 of them 2 inches or more; the largest was 2.00-inch hail on May 31, 2002.
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 Knollcrest'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.
Knollcrest radar FAQ
Where is the nearest weather radar to Knollcrest, CT?
KOKX (Upton, NY), about 54 miles southeast. KENX (Albany, NY) is 81 miles away and also covers the area.
Does radar show snow in Knollcrest?
Yes. TALON colors snow blue, a rain–snow mix pink and freezing rain purple using NOAA's precipitation-type analysis. Over Knollcrest the lowest scan from KOKX is about 3,900 ft up.
Is TALON's radar for Knollcrest 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 Knollcrest, follow it right away — see watch vs. warning.
Radar for nearby towns
- Danbury, CT radar 7 mi
- Newtown, CT radar 10 mi
- Naugatuck, CT radar 22 mi
- Shelton, CT radar 22 mi
- Litchfield, CT radar 22 mi
- Waterbury, CT radar 23 mi
- Ansonia, CT radar 23 mi
- Derby, CT radar 23 mi
- Bridgeport, CT radar 26 mi
- Norwalk, CT radar 28 mi