Snow in Rancho Cucamonga, California Winter storm alerts · 7-day snow forecast · average snowfall

Measurable snow is rare in Rancho Cucamonga: the 1991–2020 normal rounds to zero — only a trace in most years, and nights reach freezing on about 2 days a year. When snow or ice does arrive, it causes outsized trouble because roads are rarely treated — watch for Winter Weather Advisories and Freeze Warnings.

Winter by month

NOAA NCEI U.S. Climate Normals 1991–2020 — snowfall at Pomona/Fairplex (10 mi from the city center, -217 ft elevation difference); temperatures at Ontario Intl. Airport. Averages smooth out big years: single winters can bring half or double the normal.

Winter weather map around Rancho Cucamonga

Nearby cities

All California winter alerts and cities → · National winter storm map → · Frost dates by ZIP code →

Questions

How much snow does Rancho Cucamonga get a year?

0 inches in an average year (NOAA U.S. Climate Normals 1991–2020, Pomona/Fairplex station, 10 miles away).

Is there a winter storm warning for Rancho Cucamonga today?

This page checks the National Weather Service for active alerts at Rancho Cucamonga's location every time you open it; the box at the top lists any winter storm, winter weather, cold or freeze alert in effect right now.

How many freezing nights does Rancho Cucamonga have?

About 2 nights a year drop to 32 °F or below (NOAA 1991–2020); the coldest month, December, averages a low of 44 °F.