Grenville, NM Live Doppler Radar
Live radar for Grenville, Union County: every NWS radar combined, rain, snow and ice colors, flash-flood risk, storm tracks and official warnings.
What weather hits Grenville?
Since 1996, the National Weather Service has logged damaging thunderstorm winds on 75 days in the Union County forecast zone and Union County — the most common reported hazard around Grenville, mostly in August and July. Next come high winds (61 days) and flash flooding (27 days).
| Hazard | Days reported | Most recent | Worst on record |
|---|---|---|---|
| Damaging thunderstorm winds | 75 | May 2026 | Aug 12, 2023 · $50,000 damage |
| High winds | 61 | Mar 2026 | Dec 15, 2021 · $100,000 damage |
| Flash flooding | 27 | Jun 2025 | Aug 8, 2019 · $50,000 damage |
| Heavy snow & winter storms | 13 | Jan 2026 | — |
| Blizzards | 4 | Nov 2024 | Nov 7, 2024 · $4.0 million damage |
| Extreme cold & wind chill | 4 | Jan 2025 | — |
| Dust storms | 1 | Dec 2022 | — |
| Ice storms & sleet | 1 | Feb 2023 | — |
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 Union County forecast zone and Union County; damage is as reported, not adjusted for inflation.
How much snow does Grenville get?
A normal year brings about 18 inches of snow to Grenville, based on NOAA's 1991–2020 climate normals for the Grenville weather station in town. The snowiest month is usually December (5.1 in).
| Oct | Nov | Dec | Jan | Feb | Mar | Apr | May |
|---|---|---|---|---|---|---|---|
| 0.7 | 2.2 | 5.1 | 3.2 | 3.3 | 2.1 | 1.3 | 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 Grenville?
The closest NEXRAD Doppler radar is KPUX (Pueblo, CO), about 133 miles north-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 Grenville | View |
|---|---|---|---|
| KPUX Pueblo, CO | 133 mi north-northwest | 14,900 ft | Limited — the beam overshoots the lowest part of storms |
| KFDX Cannon AFB, NM | 135 mi south | 15,400 ft | Limited — the beam overshoots the lowest part of storms |
| KAMA Amarillo, TX | 142 mi southeast | 16,600 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 Grenville
Since 1950, NOAA has recorded 18 tornadoes within 25 miles of Grenville. Most came in May and July. The strongest was an F1 on May 17, 1962, which passed about 15 miles southeast of town. The most recent was a tornado of unknown strength on May 28, 2024, which passed about 10 miles southeast of town.
Hail: 147 reports of 1-inch or larger hail within 25 miles since 1955, 14 of them 2 inches or more; the largest was 3.00-inch hail on May 26, 2019.
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 Grenville'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.
Grenville radar FAQ
Where is the nearest weather radar to Grenville, NM?
KPUX (Pueblo, CO), about 133 miles north-northwest. KFDX (Cannon AFB, NM) is 135 miles away and also covers the area.
Does radar show snow in Grenville?
Yes. TALON colors snow blue, a rain–snow mix pink and freezing rain purple using NOAA's precipitation-type analysis. Over Grenville the lowest scan from KPUX is about 14,900 ft up, so light snow from shallow clouds can be under-shown — check NWS winter alerts too.
Is TALON's radar for Grenville 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 Grenville, follow it right away — see watch vs. warning.
Radar for nearby towns
- Clayton, NM radar 28 mi
- Raton, NM radar 50 mi