First Snowfall Blankets Northwestern Mexico
Mexico registered its first seasonal snowfall on November 20, 2025, as winter conditions began to take hold in the country's mountainous northwestern regions. The initial reports confirmed significant snow accumulation in areas such as the Sierra San Pedro Mártir in Ensenada, Baja California, marking the official start of the colder season for these high-altitude zones.
Impacted Regions and Weather Conditions
The snowfall extended across several states, with conditions for snow and/or sleet reported in the sierras of Baja California, Sonora, Chihuahua, and Durango. Temperatures plummeted significantly, with minimums ranging from -10 to -5 °C in the serrated areas of Baja California, Sonora, Chihuahua, and Durango. Accompanying the cold temperatures were strong winds, with gusts reaching between 80 and 90 km/h in Chihuahua, Coahuila, and Durango, posing risks for travel and light structures.
Meteorological Factors Behind the Event
According to the Servicio Meteorológico Nacional (SMN), the snowfall was primarily a result of Cold Front 15. This weather system interacted with a polar trough, the polar jet stream, and an atmospheric river, creating the necessary conditions for the marked drop in temperatures, strong winds, and precipitation in the form of snow and sleet. The SMN had issued warnings days prior, anticipating these severe weather changes.
Outlook and Public Safety Advisories
Authorities have advised residents in affected areas to take precautions, including dressing warmly and avoiding sudden temperature changes. The SMN also indicated the potential for further snowfall and colder conditions with the anticipated arrival of Cold Front 16 and the season's first winter storm, expected to further impact the northwest and north of Mexico in the coming days. These systems are projected to bring continued low temperatures and additional precipitation, reinforcing the early onset of winter weather across the region.
9 Comments
Africa
This is just normal winter. People forget how cold it gets in the mountains.
Coccinella
Early and intense snowfall. This *is* climate disruption in action.
anubis
While this cold snap is significant, it's important to remember that localized extreme weather doesn't negate the long-term patterns of climate change, which can even influence such events.
paracelsus
Seeing such an early and intense winter event is striking, and while it's tempting to dismiss climate concerns, it could also be an example of increased weather variability, which is a predicted effect.
anubis
It's certainly beautiful to see snow in Mexico, and a welcome relief from heat, but we can't forget the broader trend of rising global temperatures.
Loubianka
Don't confuse local weather with global climate patterns, folks.
Katchuka
Still waiting for the climate deniers to claim this means no warming.
lettlelenok
One snowstorm doesn't erase decades of warming. This isn't 'proof'.
KittyKat
Finally some proper cold weather. Good to see nature taking its course.