Winter Storm Warnings in Tucson, Arizona
Tucson sits in the Sonoran Desert at roughly 2,400 feet, and its winters reflect that — mild, mostly dry, and rarely touched by serious snowfall. Across the 13 years analyzed from 2012 through 2024, the city averaged just 1.1 inches (2.8 cm) of snow per year. When snow does fall, it tends to arrive in February or January, the two snowiest months on record for the area. Heavy snow days — those meeting the higher accumulation thresholds tracked in this dataset — averaged out to zero per year, which tells you most of what you need to know about Tucson's relationship with winter storms.
Average winter overnight lows hover around 41.4°F (5.2°C), warm enough that precipitation often falls as rain even in the coldest months. Snow that does accumulate typically melts within hours.
A winter storm warning, when one is issued here, carries different weight than it would in, say, the northern Rockies or the Great Plains. The National Weather Service calibrates warning thresholds to local conditions, so the snowfall totals that trigger an alert in Tucson are considerably lower than those used in regions accustomed to regular winter storms. Residents should treat any such warning seriously — even modest snow can create hazardous road conditions on streets and infrastructure that see ice and accumulation only rarely.
| Years analyzed | 13 winters (2012–2024) |
|---|---|
| Avg. annual snowfall | 1.1 in (2.8 cm) |
| Snowiest months | February, January |
| Avg. winter overnight low | 41.4°F (5.2°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 Tucson 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.
Tucson winter storm FAQ
Is there a winter storm warning in Tucson 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 Tucson, Arizona. It checks live forecast and alert data automatically and refreshes every time the page loads.
Does Tucson get winter storm warnings often?
Tucson rarely sees measurable snow, so winter storm warnings are uncommon; even a light snow or ice event can be highly disruptive here. The frequency varies year to year with the track of major storm systems.
How much snow triggers a winter storm warning in Tucson?
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 Tucson, warnings can be issued for amounts snowier regions would shrug off.
What should I do during a winter storm warning in Tucson?
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 Arizona authorities and the National Weather Service (NWS).
Winter storm warnings in nearby locations
- Winter storm warning in Phoenix, AZ
- Winter storm warning in Flagstaff, AZ
- Winter storm warning in Las Cruces, NM
- Winter storm warning in El Paso, TX
- Winter storm warning in Albuquerque, NM
- Winter storm warning in Las Vegas, NV
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.