Big Bear is an alpine town situated in the San Bernardino Mountains, sitting at an average elevation of nearly 6,750 feet. Snow is certainly possible in November, but it is highly inconsistent. November marks the beginning of the transition into the winter season, meaning conditions are highly variable and not representative of the mid-winter peak.
Historical Snowfall and Probability
The historical data indicates November is typically the third or fourth snowiest month of the year, though overall accumulation remains quite low compared to January or February. Long-term averages show Big Bear receives approximately 3.4 to 5.6 inches of total snowfall during the month of November. The season’s first significant snowfall frequently arrives sometime in November, often occurring in the latter half of the month.
While snow may fall, it does not always stick due to the relatively warm ground temperatures left over from autumn. Any early accumulation often melts quickly between storms, making a sustained, deep natural snowpack unlikely until later in the season. These early storms are highly erratic, meaning some years may see a significant pre-Thanksgiving dump, while other years may not see any snow until December.
November Skiing and Resort Readiness
The start of November is characterized by resort preparation rather than reliable natural conditions. Big Bear Mountain Resort, which includes Snow Summit and Bear Mountain, typically targets a late November opening, often coinciding with the Thanksgiving holiday weekend. This opening is almost entirely dependent on the ability to produce a man-made base layer, not natural snowfall.
Snowmaking requires sustained cold temperatures, specifically nighttime lows below freezing, to utilize the extensive system of hydrants and snow cannons. The resort uses this technology to create a durable base, allowing a limited number of runs to open for the start of the season. Deep powder days are rare in November; instead, visitors can expect a firm, machine-groomed surface on open trails.
Typical November Temperatures and Sunshine
November in Big Bear features crisp, cool weather that is generally bright and clear. Average daytime high temperatures typically decrease from around 58°F at the start of the month to approximately 47°F by the end of November. Nighttime conditions are significantly colder, with average lows dropping from the mid-30s to near or below 25°F.
The sky is clear or partly cloudy for about 67% of the daylight hours. This abundance of sun helps keep the days pleasant but also contributes to the rapid melting of any initial natural snow. The air is often dry, requiring travelers to be prepared for substantial temperature swings between daylight and overnight hours.
Essential Travel and Road Logistics
Travelers heading to Big Bear must be aware that the winter driving season begins on November 1st, regardless of the current weather forecast. California law mandates that all vehicles must carry tire chains or other approved traction devices from November 1st through April 30th when traveling in the mountain area. This requirement applies to all vehicles ascending the mountain highways, including Routes 18, 38, and 330.
The California Department of Transportation (Caltrans) enforces chain controls (R-1, R-2, R-3) during active or anticipated storm conditions, and checkpoints will turn vehicles away if they are not equipped. Chains must be correctly installed on the vehicle’s drive wheels. Always check the Caltrans QuickMaps website for real-time updates on road closures and chain requirements immediately before beginning the drive up the mountain.