Mammoth Lakes, CA, has cold December weather. Average high temperatures range from 42°F to 36°F. Average lows are between 19°F (-7°C) and 17°F (-8°C). Expect overcast conditions for 44% of the month. This is the winter season, perfect for snow activities. Check daily forecasts for the most accurate weather updates.
Snowfall is frequent in December, with averages reaching up to 13 inches (33 cm) throughout the month. The snowpack builds up, making Mammoth Lakes a popular destination for winter sports enthusiasts. The air remains crisp, and clear skies occasionally appear, bringing sunshine to the winter landscape.
Visitors should prepare for cold conditions. Dressing in layers is advisable, as temperatures can fluctuate throughout the day. Additionally, checking the local weather forecast can provide updates on snowfall and temperature changes.
With December’s cold charm setting the stage, Mammoth Lakes becomes a hub for winter activities. From skiing at the Mammoth Mountain Ski Area to enjoying cozy evenings by the fire, the season offers an array of experiences. As winter unfolds, knowing what to expect in January can help you plan your next steps in this beautiful mountain town.
What Are the Average High and Low Temperatures in December in Mammoth Lakes, CA?
The average high temperature in December in Mammoth Lakes, CA is around 37°F (3°C), while the average low temperature is approximately 14°F (-10°C).
Key points regarding December temperatures in Mammoth Lakes, CA include:
1. Average high temperature: 37°F (3°C)
2. Average low temperature: 14°F (-10°C)
3. Snowfall expectations
4. Variability of temperatures
5. Influence of altitude on temperatures
The following sections will explain each point in detail for better understanding.
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Average High Temperature: The average high temperature in December in Mammoth Lakes, CA is 37°F (3°C). This temperature reflects the chilly weather characteristic of the high-altitude region, which sits around 7,880 feet (2,400 meters) above sea level. It creates a winter atmosphere perfect for snow sports.
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Average Low Temperature: The average low temperature in December is 14°F (-10°C). This low temperature indicates significant cold nights, which can lead to frost formation. Visitors should prepare for subzero conditions when planning winter activities or trips in the area.
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Snowfall Expectations: December typically sees considerable snowfall in Mammoth Lakes. On average, the region receives approximately 72 inches of snow throughout the month. This abundance of snow supports winter sports like skiing and snowboarding. According to the Mammoth Mountain Ski Area, December’s snowfall usually sets the stage for an exciting winter season.
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Variability of Temperatures: Temperature variability is common in Mammoth Lakes during December. Though averages provide a general indication, actual temperatures may fluctuate due to weather systems. Some days may experience highs reaching the low 40s °F (4-6°C) and lows dipping below 0°F (-18°C). This variability can be important for those engaging in outdoor activities, as it affects attire and preparedness.
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Influence of Altitude on Temperatures: Mammoth Lakes is located at a high altitude, which greatly influences its temperatures. Higher elevations typically lead to cooler temperatures and more significant snowfall compared to lower areas in California. According to the National Oceanic and Atmospheric Administration (NOAA), altitude changes air pressure and consequently affects weather patterns, including temperature.
Understanding these temperature trends is essential for anyone considering a visit to Mammoth Lakes in December, allowing for informed planning and preparedness.
How Does December Temperature in Mammoth Lakes Compare to Other Cities?
The average December temperatures in Mammoth Lakes, California, can be compared to several other cities to understand how it relates to their climates. Below is a table showing the average December temperatures for Mammoth Lakes and selected cities:
| City | Average December Temperature (°F) | Temperature Difference from Mammoth Lakes (°F) |
|---|---|---|
| Mammoth Lakes, CA | 30 | N/A |
| Los Angeles, CA | 56 | +26 |
| Denver, CO | 34 | +4 |
| New York, NY | 38 | +8 |
| Chicago, IL | 30 | 0 |
| Seattle, WA | 40 | +10 |
This comparison illustrates that Mammoth Lakes experiences colder December temperatures than cities like Los Angeles and Seattle, while being similar to Chicago.
What Is the Average Precipitation Rate in December for Mammoth Lakes, CA?
The average precipitation rate in December for Mammoth Lakes, CA, typically ranges from 2 to 5 inches. Precipitation in this context refers to any form of water, such as rain or snow, that falls to the ground.
According to the National Oceanic and Atmospheric Administration (NOAA), precipitation is a key component of the Earth’s hydrological cycle, influencing local weather patterns and climate.
In Mammoth Lakes, December often marks the transition into winter. This period brings significant snowfall, making it a popular destination for winter sports. The snowfall contributes to the region’s water supply but also affects travel and outdoor activities.
The Western Regional Climate Center defines precipitation as vital for ecosystems and agriculture. Their data highlights the significance of seasonal precipitation patterns in climate studies and water resource management.
Different factors influence precipitation, including geographic location, elevation, and atmospheric conditions. Winter storms moving from the Pacific Ocean often lead to increased snowfall in mountainous areas like Mammoth Lakes.
Statistical data from the Mammoth Mountain Ski Area indicates that December averages around 3.5 inches of snowfall annually. This data is crucial for ski resorts and local tourism.
Higher precipitation levels positively affect water reservoirs and ecosystems. However, excessive snowfall can lead to avalanches and traffic hazards.
The environmental impacts include enhanced moisture for soil, but heavy snows can disrupt local wildlife habitats. Economically, increased snowfall supports local tourism and businesses.
To address precipitation-related challenges, experts recommend improving infrastructure for snow removal and enhancing emergency response plans. Organizations like California’s Department of Water Resources encourage sustainable practices for water management.
Strategies such as snowpack monitoring, improved forecasting, and investment in winter sports infrastructure can help mitigate the effects of extreme precipitation.
Are There Patterns in Rainfall and Snowfall in Mammoth Lakes, CA During December?
Yes, there are distinct patterns in rainfall and snowfall in Mammoth Lakes, CA during December. The average precipitation typically falls as snow due to the cold temperatures. December is one of the snowiest months for this region, making it a popular time for winter sports enthusiasts.
In December, Mammoth Lakes experiences a blend of rainfall and snowfall. The region receives an average of 78 inches of snowfall throughout the month, and these figures can vary based on weather systems. Rain primarily occurs during warmer spells; however, as temperatures drop significantly, most precipitation transitions to snow. This pattern is characterized by frequent winter storms moving through California’s Sierra Nevada mountains, which contributes to heavy snowfall in Mammoth Lakes.
The benefits of this snowfall are significant. The abundant snowpack provides great conditions for skiing, snowboarding, and other winter activities. Additionally, snow accumulation contributes to the region’s water supply during the warmer months, as it melts and replenishes reservoirs. The National Weather Service indicates that snowfall in Mammoth Lakes can lead to a snowpack that may exceed 200% of average in some years, promoting seasonal tourism and economic growth in the area.
On the downside, heavy snowfalls can lead to challenges. They may result in hazardous driving conditions, increased snow removal costs, and potential disruptions to daily life. According to the California Department of Transportation, road closures due to snow and ice accumulation can occur, impacting travel and transportation. Furthermore, excessive snowfall can contribute to issues like snow load on roofs, necessitating careful monitoring and management by property owners.
To enjoy December in Mammoth Lakes safely, visitors should prepare adequately. It is advisable to check weather forecasts regularly, ensure vehicles are equipped for winter conditions, and be aware of local advisories. Additionally, winter recreationists should stay informed about avalanche conditions when venturing into backcountry areas. Planning activities around expected snowfall can help maximize enjoyment while minimizing risks.
What Are the Typical Weather Conditions in Mammoth Lakes, CA in December?
The typical weather conditions in Mammoth Lakes, CA, in December include cold temperatures, snowy conditions, and high humidity levels.
- Average Temperatures
- Snowfall
- Humidity
- Sunshine Hours
- Wind Conditions
The weather in December can vary greatly based on specific factors. Understanding these attributes helps to paint a complete image of typical conditions.
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Average Temperatures:
Average temperatures in Mammoth Lakes in December range from about 10°F to 40°F. The coldest days can see lows below 20°F. The average high temperature is around 34°F. Such temperatures influence outdoor activities, often making winter sports enthusiasts flock to the area. -
Snowfall:
December typically sees significant snowfall in Mammoth Lakes. The average monthly snowfall can exceed 50 inches. This heavy snowfall supports skiing and snowboarding, thereby boosting tourism. In some years, snowfall can be even greater, creating a winter wonderland for visitors. -
Humidity:
Humidity levels in December are generally high, averaging around 80%. This humidity contributes to the cold feel in the air. While some appreciate the crisp, fresh air, others may find it uncomfortable when combined with low temperatures. -
Sunshine Hours:
The area experiences limited sunshine in December, averaging around 6 hours of sunlight per day. Overcast skies are common. The reduced sunlight can affect mood and outdoor activities but is a typical feature of winter in the Sierra Nevada mountains. -
Wind Conditions:
Wind speeds in December are moderate, averaging around 10 miles per hour. The gusts can make the cold feel even more biting. However, calm days can provide a pleasant break for outdoor activities.
These attributes highlight the characteristics of December weather in Mammoth Lakes, offering insights for both tourists and locals planning their activities.
How Do Clouds and Humidity Affect December Weather in Mammoth Lakes, CA?
Clouds and humidity significantly impact December weather in Mammoth Lakes, CA, by influencing temperature, precipitation, and overall atmospheric conditions.
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Temperature Reduction: Clouds can trap heat, leading to milder overnight temperatures. During December, average low temperatures are around 17°F (-8°C) while daytime highs reach approximately 39°F (4°C). This phenomenon occurs because clouds act like a blanket, preventing heat from escaping into the atmosphere.
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Precipitation Increase: Increased humidity often correlates with cloud cover. Higher humidity levels lead to more precipitation in the form of snow in Mammoth Lakes. December typically receives about 63 inches of snowfall, which is crucial for the ski season. The presence of moisture in the air enhances the likelihood of precipitation, particularly when temperatures hover around freezing.
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Atmospheric Pressure Changes: Humidity and clouds can also result in changes in atmospheric pressure. High humidity can create low-pressure systems that promote storm formation. Such systems are common in December, leading to weather fronts that bring snowstorms or rain.
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Visibility Impairment: Dense clouds and high humidity can reduce visibility in Mammoth Lakes. This condition can be particularly concerning for drivers and skiers. Reduced visibility often accompanies winter storms, emphasizing the need for caution during December weather.
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Inversion Layers: Clouds can contribute to temperature inversions, where warmer air traps cold air at the surface. Mammoth Lakes can experience these inversions in December, resulting in colder temperatures in the valleys while higher elevations may be warmer.
By understanding these elements, residents and visitors can better prepare for the December weather in Mammoth Lakes.
What Should Visitors Know About the December Weather Forecast in Mammoth Lakes, CA?
Visitors to Mammoth Lakes, CA, in December should anticipate cold weather, with frequent snowfall and a variety of winter activities available.
Key Points about December Weather in Mammoth Lakes, CA:
1. Average Temperatures
2. Precipitation and Snowfall
3. Winter Activities
4. Travel Tips
5. Local Climate Variability
Transitioning to a more detailed understanding of each point will enhance your preparation for this winter destination.
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Average Temperatures:
Average temperatures in Mammoth Lakes during December range from 14°F to 40°F (-10°C to 4°C). The nights are notably colder, often dropping well below freezing. Heavy winter clothing is essential for comfort. Historical data from the National Oceanic and Atmospheric Administration (NOAA) reveals that temperatures have consistently hovered around these ranges over the last several decades. -
Precipitation and Snowfall:
December typically sees significant snowfall, averaging about 5 to 7 feet (1.5 to 2.1 meters) during the month. This high level of precipitation primarily falls as snow, creating ideal conditions for skiing and snowboarding. According to the Mammoth Mountain Ski Area, December usually marks the beginning of the ski season, and the heavy snow contributes to an enjoyable atmosphere for winter sports enthusiasts. -
Winter Activities:
Visitors can take advantage of various winter activities, including skiing, snowboarding, ice skating, and snowshoeing. Popular locations like Mammoth Mountain and the surrounding national forests offer plenty of trails and slopes. A study by the California Department of Parks and Recreation highlights that outdoor winter ventures in this region attract many tourists who enjoy snow-based recreation. -
Travel Tips:
Traveling to Mammoth Lakes in December may involve challenging road conditions due to snow and ice. It is advisable to check weather and road conditions frequently. The California Department of Transportation emphasizes the need for snow chains and appropriate tires when navigating mountain roads during this season. Additionally, booking accommodations early is crucial due to high demand in the winter months. -
Local Climate Variability:
Local climate conditions in Mammoth Lakes can vary significantly from year to year. Factors like El Niño and La Niña patterns often influence snowfall and temperature. For example, the winters of 2015 and 2016 were especially dry, while December 2021 saw record snowfall, illustrating the fluctuations that visitors can expect.
Understanding these factors can significantly enhance your experience in Mammoth Lakes, allowing for better planning and preparation for winter activities.
What Are the Best Activities to Enjoy in December Weather in Mammoth Lakes, CA?
In December, Mammoth Lakes, CA, offers a variety of enjoyable activities suited for winter enthusiasts and nature lovers. Popular options include skiing, snowboarding, snowshoeing, and exploring the town’s festive atmosphere.
- Skiing and Snowboarding
- Snowshoeing
- Ice Skating
- Winter Hiking
- Visiting Hot Springs
- Enjoying Local Festivals and Events
- Wildlife Watching
Transitioning from these activities, it’s essential to explore each in detail to fully appreciate what Mammoth Lakes offers in December.
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Skiing and Snowboarding: Skiing and snowboarding are among the most popular activities in Mammoth Lakes during December. The Mammoth Mountain Ski Area features a large variety of runs suitable for all skill levels, with over 3,500 acres of skiable terrain. According to the resort, it boasts an average annual snowfall of over 400 inches, ensuring excellent conditions throughout the winter season.
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Snowshoeing: Snowshoeing provides an alternative way to explore the snowy landscapes. This activity requires minimal equipment and allows for traversing trails that may be less crowded. Popular trails include the Mammoth Lakes Basin Loop, which offers stunning views of the surrounding wilderness.
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Ice Skating: Ice skating at the Mammoth Lakes Ice Rink is a festive experience. The rink typically opens in late November or early December and offers public skating sessions and rentals. It’s a family-friendly activity that allows visitors to enjoy the winter chill while engaging in a classic pastime.
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Winter Hiking: Winter hiking is a rewarding way to experience the serenity of Mammoth Lakes. Trails like the McGee Creek Trail provide beautiful scenery with a quieter atmosphere in the winter months. Hikers should ensure they have proper gear and check trail conditions before heading out.
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Visiting Hot Springs: The natural hot springs near Mammoth Lakes offer a relaxing escape from the cold. Popular spots include the Wild Willy’s Hot Springs, where visitors can soak while surrounded by picturesque snow-covered landscapes.
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Enjoying Local Festivals and Events: December is a festive month in Mammoth Lakes, with holiday events and festivals taking place. The Winter Festival and holiday celebrations often include live music, arts and crafts, and local food vendors, fostering a vibrant community spirit.
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Wildlife Watching: Wildlife watching can be particularly rewarding during December, as many animals adapt to the snowy environment. Visitors may catch a glimpse of deer, foxes, and various bird species that thrive in the winter landscape. Engaging with local wildlife provides a deeper appreciation for the area’s natural beauty.
How Can You Prepare for December Weather in Mammoth Lakes, CA?
To prepare for December weather in Mammoth Lakes, CA, gather appropriate winter gear, monitor weather forecasts, and understand local conditions.
Winter gear: Bring layered clothing, waterproof outerwear, and thermal undergarments. Layering allows you to adjust your temperature according to changing weather, while waterproof clothing helps keep you dry in snow and rain.
Weather forecasts: Check local forecasts frequently. December in Mammoth Lakes usually sees average temperatures between 20°F (-6°C) and 40°F (4°C). The region often experiences significant snowfall, with an average of around 70 inches. Staying updated on weather conditions helps you plan activities and travel safely.
Local conditions: Be aware of the high elevation and potential for altitude sickness. Mammoth Lakes is at an elevation of approximately 7,880 feet (2,400 meters). Acclimatize by taking it easy in the first few days. Carrying a travel mug of warm beverages can help maintain body temperature.
By following these guidelines, you can enjoy your time in Mammoth Lakes while staying warm and safe during December’s winter weather.
What Clothing and Gear Are Recommended for December Conditions in Mammoth Lakes, CA?
For December conditions in Mammoth Lakes, CA, layered clothing and specific outdoor gear are essential to stay comfortable and safe.
- Base layers (thermal tops and bottoms)
- Insulating layers (fleece or down jackets)
- Waterproof and windproof outer layers (jackets and pants)
- Accessories (hats, gloves, scarves)
- Footwear (waterproof boots with warm socks)
- Equipment (snowshoes or skis, depending on activities)
Considering various perspectives, some might argue that investing in higher-quality gear offers better insulation and durability. Others may advocate for budget-friendly options, emphasizing the importance of layering rather than high-end brands. Both viewpoints can be valid, depending on your experience level and personal preferences.
December Weather Conditions in Mammoth Lakes, CA:
December weather conditions in Mammoth Lakes, CA, call for specific clothing and gear to manage cold and potentially wet environments. The average temperatures can range from 10°F to 30°F. Wind chill can make it feel even colder. Therefore, proper attire is necessary for outdoor activities.
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Base Layers: Base layers consist of thermal tops and bottoms designed to trap heat and wick moisture away from the skin. They provide comfort while also keeping you warm. Materials like merino wool and synthetic fabrics are popular choices due to their thermal properties.
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Insulating Layers: Insulating layers, such as fleece or down jackets, are crucial for maintaining body heat. Fleece jackets are lightweight and provide excellent insulation. Down jackets are more compact and provide a higher warmth-to-weight ratio, making them suitable for colder conditions.
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Waterproof and Windproof Outer Layers: Waterproof and windproof outer layers, such as jackets and pants, protect against snow and wind. These layers are essential for staying dry and preventing heat loss. Look for materials labeled as water-resistant or waterproof, such as Gore-Tex.
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Accessories: Accessories, including hats, gloves, and scarves, are essential for protecting extremities from cold. Hats help retain body heat, while gloves and scarves protect hands and the neck area. Opt for insulated and waterproof options when possible.
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Footwear: Waterproof boots combined with warm socks ensure your feet stay dry and warm. Insulated, waterproof footwear is recommended to handle snow and slush effectively. Traction is also important for stability on slippery surfaces.
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Equipment: Depending on your activities, consider specialized equipment such as snowshoes or skis. These tools enhance your winter experience and help navigate through snow-covered terrain more effectively.
Being equipped correctly for December conditions in Mammoth Lakes can significantly enhance safety and enjoyment while engaging in winter sports or simply exploring the scenic area.
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