Winter Storm Warnings in Chattanooga, Tennessee
Chattanooga sits in the Tennessee River valley, sheltered by the surrounding ridges of the southern Appalachians — a geography that keeps serious winter weather relatively rare. Across the 13 years analyzed from 2012 through 2024, the city averaged just 2.6 inches (6.6 cm) of snowfall per year, a figure that reflects how infrequently significant accumulations actually reach the valley floor. When snow does fall, it tends to arrive in February, January, or March, in that order of likelihood. Days with heavy or major snowfall averaged out to essentially zero across the study period, meaning multi-inch snowstorms are genuinely exceptional events here rather than a recurring seasonal expectation.
Average winter overnight lows hover around 35.8°F (2.1°C), which means temperatures frequently flirt with the freezing mark without committing to it. This makes ice — not deep snow — the more common and often more dangerous winter hazard in Chattanooga.
A Winter Storm Warning signals that conditions are expected to be severe enough to pose serious threats to life and travel. It's important to understand that warning thresholds are not uniform across the country. The snowfall totals required to trigger a warning in Chattanooga are considerably lower than those used in northern states, because local infrastructure, road treatment resources, and driver experience are calibrated to a much milder baseline. Even modest accumulations can create hazardous conditions here.
| Years analyzed | 13 winters (2012–2024) |
|---|---|
| Avg. annual snowfall | 2.6 in (6.6 cm) |
| Snowiest months | February, January, March |
| Avg. winter overnight low | 35.8°F (2.1°C) |
| Heavy-snow days per year | 0 |
Climatology figures are approximate estimates for the period shown and may differ from official local records.
Watch vs warning: a winter storm watch means a major storm is possible in Chattanooga within 12–48 hours (be prepared); a winter storm warning means it is happening or about to (take action now). For full definitions, see the complete winter storm warning guide.
Chattanooga winter storm FAQ
Is there a winter storm warning in Chattanooga right now?
The live status at the top of this page shows whether a winter storm warning, watch, or advisory is currently in effect for Chattanooga, Tennessee. It checks live forecast and alert data automatically and refreshes every time the page loads.
Does Chattanooga get winter storm warnings often?
Chattanooga sees only occasional snow, so winter storm warnings are infrequent, though disruptive snow and ice events do occur. The frequency varies year to year with the track of major storm systems.
How much snow triggers a winter storm warning in Chattanooga?
There is no single national trigger: warning criteria are set by each local National Weather Service office, ranging from a couple of inches of snow in areas where snow is rare up to 6 inches or more in snow-belt regions, and significant ice accumulation can warrant a warning on its own. In a lower-snow area like Chattanooga, warnings can be issued for amounts snowier regions would shrug off.
What should I do during a winter storm warning in Chattanooga?
Avoid travel if possible, stay indoors and keep warm, prepare for power outages, keep an emergency kit, and check on elderly or vulnerable neighbours. Follow guidance from Tennessee authorities and the National Weather Service (NWS).
Winter storm warnings in nearby locations
- Winter storm warning in Huntsville, AL
- Winter storm warning in Atlanta, GA
- Winter storm warning in Knoxville, TN
- Winter storm warning in Nashville, TN
- Winter storm warning in Birmingham, AL
- Winter storm warning in Bowling Green, KY
See all locations, read the latest winter weather news, or the full winter storm warning guide. Definitions follow the National Weather Service (NWS) criteria; thresholds vary by region.