Garnavillo, IA Live Doppler Radar
Live radar for Garnavillo, Clayton County: every NWS radar combined, rain, snow and ice colors, flash-flood risk, storm tracks and official warnings.
What weather hits Garnavillo?
Since 1996, the National Weather Service has logged river or areal flooding on 107 days in the Clayton forecast zone and Clayton County — the most common reported hazard around Garnavillo, mostly in May and June. Next come heavy snow & winter storms (78 days) and damaging thunderstorm winds (76 days).
| Hazard | Days reported | Most recent | Worst on record |
|---|---|---|---|
| Flooding | 107 | Aug 2025 | Jun 7, 2008 · $25 million damage |
| Heavy snow & winter storms | 78 | Feb 2026 | Nov 20, 1996 · $2,000 damage |
| Damaging thunderstorm winds | 76 | May 2026 | Jun 22, 2015 · $200,000 damage |
| Flash flooding | 31 | Aug 2025 | Jul 21, 2017 · $12 million damage |
| Extreme cold & wind chill | 21 | Jan 2026 | — |
| Excessive heat | 15 | Jun 2026 | Jul 17, 2011 · $25,000 damage |
| High winds | 9 | Dec 2021 | Nov 10, 1998 · $225,000 damage |
| Ice storms & sleet | 5 | Dec 2024 | Jan 4, 1998 · $4,000 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 Clayton forecast zone and Clayton County; damage is as reported, not adjusted for inflation.
How much snow does Garnavillo get?
A normal year brings about 34 inches of snow to Garnavillo, based on NOAA's 1991–2020 climate normals for the Guttenberg L&D 10 weather station 9 miles away. The snowiest month is usually January (10.0 in).
| Oct | Nov | Dec | Jan | Feb | Mar | Apr | May |
|---|---|---|---|---|---|---|---|
| 0.3 | 1.2 | 9.2 | 10.0 | 9.3 | 3.7 | 0.7 | 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 Garnavillo?
The closest NEXRAD Doppler radar is KARX (La Crosse, WI), about 66 miles north. 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 Garnavillo | View |
|---|---|---|---|
| KARX La Crosse, WI | 66 mi north | 5,200 ft | Good — most storms and steady rain or snow show clearly |
| KDVN Quad Cities, IA | 93 mi south-southeast | 8,600 ft | Fair — the beam can pass over shallow snow and low-level rotation |
| KMKX Milwaukee/Sullivan, WI | 136 mi east | 15,500 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 Garnavillo
Since 1950, NOAA has recorded 61 tornadoes within 25 miles of Garnavillo, 17 of them EF2/F2 or stronger. Most came in May and June. The strongest was an F4 on April 30, 1954, which passed about 5 miles west-northwest of town. The most recent was an EF1 on March 31, 2023, which passed about 14 miles south of town.
Hail: 198 reports of 1-inch or larger hail within 25 miles since 1955, 18 of them 2 inches or more; the largest was 2.75-inch hail on May 19, 1959.
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 Garnavillo'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.
Garnavillo radar FAQ
Where is the nearest weather radar to Garnavillo, IA?
KARX (La Crosse, WI), about 66 miles north. KDVN (Quad Cities, IA) is 93 miles away and also covers the area.
Does radar show snow in Garnavillo?
Yes. TALON colors snow blue, a rain–snow mix pink and freezing rain purple using NOAA's precipitation-type analysis. Over Garnavillo the lowest scan from KARX is about 5,200 ft up.
Is TALON's radar for Garnavillo 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 Garnavillo, follow it right away — see watch vs. warning.
Radar for nearby towns
- Guttenberg, IA radar 8 mi
- Elkader, IA radar 8 mi
- Monona, IA radar 15 mi
- Strawberry Point, IA radar 20 mi
- Postville, IA radar 23 mi
- Dyersville, IA radar 27 mi
- Manchester, IA radar 29 mi
- Fayette, IA radar 29 mi
- West Union, IA radar 30 mi
- Waukon, IA radar 30 mi