Angeles National Forest experiences a wide range of temperatures throughout the year, with significant variations between daytime and nighttime. The forest’s diverse elevations contribute to its unique climate patterns, from Mediterranean conditions at lower altitudes to alpine tundra at higher elevations. This guide explores the temperature fluctuations, seasonal changes, and how they impact visitors and recreational activities in the forest.
What Are the Average Daytime Temperatures in Angeles National Forest?

Angeles National Forest experiences varying daytime temperatures across different seasons:
- Spring (April to May):
- Temperature range: 68°F to 72°F
-
May average: 72°F
-
Summer (June to August):
- Temperature range: 81°F to 86°F
-
Warmest months: July, August, September
-
Autumn (September to November):
- Temperature range: 68°F to 85°F
-
October and November average: 76°F
-
Winter (December to February):
- Temperature range: 59°F to 63°F
- Coldest months: December and February
Notable weather patterns include:
– Dry periods in May and June
– Rainiest months: January, February, and December
How Do Nighttime Temperatures Vary in Angeles National Forest?

Nighttime temperatures in Angeles National Forest show significant seasonal variations:
Season | Temperature Range | Notable Characteristics |
---|---|---|
Spring | 54°F to 58°F | Mild nights |
Summer | 65°F to 70°F | Warmest nights |
Autumn | 52°F to 68°F | Cooling trend |
Winter | 45°F to 49°F | Coldest nights |
Key points:
– November nights average around 52°F
– December is one of the coldest months, with temperatures around 45°F
– Higher elevations experience colder temperatures, often below freezing in winter
What Factors Influence Temperature Variations in Angeles National Forest?
Several factors contribute to the temperature variations in Angeles National Forest:
- Elevation:
- Lower elevations: Mediterranean climate
-
Higher elevations: Alpine tundra conditions
-
Seasonal Changes:
- Summer: Warmer temperatures across all elevations
-
Winter: Significant temperature drops, especially at higher altitudes
-
Weather Patterns:
- Rainfall: Affects humidity and perceived temperature
-
Snowfall: Common at higher elevations, influencing local temperatures
-
Geographical Features:
- Canyons and valleys: Can create microclimates
- Exposed ridges: Often experience more extreme temperatures
How Do Temperature Variations Affect Recreational Activities?
The diverse temperature range in Angeles National Forest impacts various recreational activities:
- Hiking and Camping:
- Spring and Fall: Ideal temperatures for outdoor activities
- Summer: Early morning or late afternoon hikes recommended to avoid peak heat
-
Winter: Proper cold-weather gear necessary, especially at higher elevations
-
Winter Sports:
- Skiing and Snowboarding: Available at Mount Baldy ski area
- Season: Typically late fall to early spring
-
Facilities: Four lifts operate during snow season
-
Water Activities:
- Summer: Popular for swimming and water-based recreation
-
Winter: Limited due to colder temperatures and potential ice formation
-
Wildlife Viewing:
- Different species active at various temperatures
- Early morning and dusk: Often best times for wildlife observation
What Should Visitors Know About Temperature-Related Safety in Angeles National Forest?
Visitors should be aware of temperature-related safety considerations:
- Heat Safety:
- Stay hydrated, especially during summer months
- Wear appropriate sun protection
-
Plan strenuous activities for cooler parts of the day
-
Cold Weather Precautions:
- Layer clothing for adaptability to temperature changes
- Be aware of hypothermia risks, particularly at higher elevations
-
Check weather forecasts before trips, especially in winter
-
Altitude Considerations:
- Temperature drops with increasing elevation
- Acclimatize gradually when ascending to higher altitudes
-
Be prepared for rapid weather changes at high elevations
-
Emergency Preparedness:
- Carry extra food, water, and warm clothing
- Inform others of your trip plans
- Be familiar with signs of heat exhaustion and hypothermia
Are There Specific Facilities for Dealing with Temperature Extremes in Angeles National Forest?
While Angeles National Forest doesn’t have dedicated temperature-controlled facilities, it offers various amenities that can help visitors manage temperature extremes:
- Camping and Picnic Areas:
- Provide shade and rest spots
-
Examples: Chantry Flat Picnic Area, Switzer Picnic Area, Buckhorn Campground
-
Visitor Centers:
- Offer information on current conditions
-
Provide a respite from outdoor temperatures
-
Trailheads:
- Often have informational boards with weather updates
-
Some may have water sources available
-
Ski Facilities:
- Mount Baldy ski area provides shelter during winter activities
Note: There are no specific cooling stations or heated shelters mentioned in the available information.
How Can Visitors Best Prepare for Angeles National Forest’s Temperature Variations?
To prepare for the temperature variations in Angeles National Forest, visitors should:
- Check Weather Forecasts:
- Use reliable sources for up-to-date information
-
Consider both daytime and nighttime temperatures
-
Pack Appropriate Clothing:
- Bring layers for adaptability
-
Include rain gear and sun protection
-
Plan Activities Wisely:
- Schedule strenuous activities during optimal temperature periods
-
Allow for flexibility in case of unexpected weather changes
-
Carry Essential Supplies:
- Bring plenty of water and high-energy snacks
-
Pack a first-aid kit and emergency blanket
-
Be Aware of Elevation Changes:
- Understand how elevation affects temperature
-
Plan for cooler temperatures at higher altitudes
-
Stay Informed:
- Check with ranger stations for current conditions
- Be aware of any weather-related advisories or warnings
By understanding and preparing for the daytime and nighttime temperatures in Angeles National Forest, visitors can safely enjoy the diverse recreational opportunities this beautiful area has to offer throughout the year.
References:
1. https://www.whereandwhen.net/when/north-america/california/angeles-national-forest/
2. https://www.willyweather.com/ca/los-angeles-county/angeles-national-forest.html
3. https://peakvisor.com/park/angeles-national-forest.html