Colorado Weather by Month
Colorado, located in the heart of the Rocky Mountains, is known for its diverse climate, ranging from arid desert conditions to alpine environments. The state’s elevation plays a significant role in its weather patterns, with much of Colorado experiencing cooler temperatures due to its high altitude. The state’s climate is generally characterized by four distinct seasons, with mild springs, hot summers, crisp autumns, and cold, snowy winters. Colorado’s varied geography, from the plains in the east to the Rocky Mountains in the west, results in diverse weather across the state. Summers are typically warm, particularly in lower elevations, while winters can be harsh and snowy, especially in the mountains. The state receives moderate precipitation throughout the year, with snowfall being a major contributor in winter months. Colorado is also known for its abundant sunshine, averaging over 300 sunny days a year, making it a year-round destination for outdoor enthusiasts. Whether you’re skiing in the winter, hiking in the summer, or enjoying the stunning fall foliage, Colorado’s climate offers something for everyone.
Average Temperature and Precipitation by Month
| Month | Avg Temp (°F) | Avg Temp (°C) | Avg Precipitation (inches) |
|---|---|---|---|
| January | 30°F | -1°C | 0.5 |
| February | 34°F | 1°C | 0.6 |
| March | 41°F | 5°C | 1.3 |
| April | 48°F | 9°C | 1.7 |
| May | 58°F | 14°C | 2.3 |
| June | 68°F | 20°C | 1.6 |
| July | 74°F | 23°C | 2.0 |
| August | 72°F | 22°C | 1.8 |
| September | 63°F | 17°C | 1.3 |
| October | 51°F | 11°C | 1.1 |
| November | 38°F | 3°C | 0.8 |
| December | 31°F | -1°C | 0.6 |
Monthly Weather, Clothing, and Landmarks
January
Weather: January is mid-winter in Colorado, with cold temperatures across the state. Average temperatures range from 15°F to 45°F (-9°C to 7°C), depending on elevation. The mountains, particularly in ski areas like Aspen and Vail, receive significant snowfall, making it a prime month for winter sports. The lower elevations, including Denver, experience cold temperatures but with less snow and more frequent sunny days.
Clothing: Warm, layered clothing is essential in January. A heavy winter coat, thermal layers, gloves, a hat, and a scarf are necessary for staying warm. In the mountains, snow boots and waterproof outerwear are recommended, especially if you plan to engage in skiing or snowboarding.
Landmarks: January is a perfect time to visit Colorado’s ski resorts, including Aspen, Vail, and Breckenridge, which offer world-class skiing and snowboarding. For those interested in winter hiking or snowshoeing, Rocky Mountain National Park provides stunning winter landscapes, with trails accessible for all skill levels. The Ice Castles in Dillon are also a popular attraction, where visitors can explore massive ice structures illuminated by colorful lights.
February
Weather: February continues the winter season in Colorado, with temperatures similar to January, averaging between 20°F and 45°F (-6°C to 7°C). The mountains continue to receive ample snowfall, maintaining excellent conditions for skiing and snowboarding. Lower elevations may experience a mix of snow and sunshine, with slightly milder conditions toward the end of the month.
Clothing: Dress warmly with thermal layers, a winter coat, and accessories like gloves and a hat. In the mountains, waterproof gear is essential, including insulated snow boots for protection against cold and snow. For outdoor activities, layering is key to adjusting to varying temperatures.
Landmarks: February is ideal for visiting the ski resorts in Telluride and Steamboat Springs, known for their powdery snow and picturesque settings. The town of Steamboat Springs also hosts its annual Winter Carnival in February, featuring ski-jumping events, parades, and fireworks. For a unique experience, visit the Great Sand Dunes National Park, where the contrast of snow-capped dunes against the Sangre de Cristo Mountains creates a stunning winter landscape.
March
Weather: March marks the beginning of spring in Colorado, although winter conditions often persist, especially in the mountains. Temperatures range from 30°F to 55°F (-1°C to 13°C), with continued snowfall in higher elevations and more variable weather in the plains and valleys. March is also one of the snowiest months in Colorado, making it a great time for late-season skiing.
Clothing: Layered clothing remains important in March, with a focus on warmth and waterproofing. A medium-weight jacket may be sufficient for lower elevations, but a heavier coat is still needed in the mountains. Waterproof boots and gloves are recommended for outdoor activities.
Landmarks: March is an excellent time to visit the high-altitude ski resorts like Copper Mountain and Keystone, where snow conditions are still prime. The mild weather also makes it a good time to explore Denver’s cultural attractions, such as the Denver Art Museum and the Colorado State Capitol, with the possibility of enjoying outdoor events as the weather begins to warm. The ski town of Crested Butte, known as the “Last Great Colorado Ski Town,” is another must-visit in March, offering a charming, laid-back atmosphere with plenty of snow.
April
Weather: April brings a mix of winter and spring to Colorado, with temperatures ranging from 35°F to 65°F (2°C to 18°C). The lower elevations begin to warm up significantly, while the mountains may still experience late-season snowstorms. Rain becomes more common in the plains, while snow showers are possible in the mountains.
Clothing: Light to medium layers are ideal for April, with a focus on adaptability to changing conditions. A waterproof jacket is useful for rain or snow showers, and sturdy hiking boots are recommended for exploring muddy or wet trails.
Landmarks: April is a good time to visit the Garden of the Gods in Colorado Springs, where the red rock formations are striking against the backdrop of snow-capped mountains. The weather is also suitable for exploring Boulder’s Flatirons, where you can hike or climb among the iconic rock formations. In the mountains, April can be a great time for spring skiing at resorts like Arapahoe Basin, which often remains open later in the season due to its high elevation.
May
Weather: May marks the full arrival of spring in Colorado, with temperatures ranging from 45°F to 75°F (7°C to 24°C). Snow is largely confined to the highest elevations, while lower areas experience warmer weather, blooming wildflowers, and greening landscapes. Rain showers are more frequent, particularly in the afternoons.
Clothing: Light layers, including t-shirts, light jackets, and rain gear, are appropriate for May. Waterproof hiking boots are ideal for outdoor activities, as trails can be muddy or wet from melting snow and spring rains.
Landmarks: May is a fantastic time to visit Mesa Verde National Park, where you can explore ancient cliff dwellings amid blooming wildflowers. The Colorado National Monument near Grand Junction offers dramatic canyon views and scenic drives, perfect for enjoying the spring weather. For a taste of Colorado’s cultural heritage, the annual Cinco de Mayo Festival in Denver celebrates Mexican culture with music, dancing, and delicious food.
June
Weather: June ushers in summer across Colorado, with temperatures ranging from 55°F to 85°F (13°C to 29°C). The mountains become accessible as the snow melts, revealing lush meadows and full rivers. The plains and valleys experience warm, sunny days with occasional thunderstorms, particularly in the afternoons.
Clothing: Light, breathable clothing is ideal for June, including shorts, t-shirts, and a light jacket for cooler mornings and evenings. Hiking boots are essential for outdoor activities, and rain gear is advisable due to the possibility of afternoon storms.
Landmarks: June is an excellent time to visit Rocky Mountain National Park, where you can hike among wildflowers, watch wildlife, and enjoy the park’s scenic beauty. The Maroon Bells near Aspen, with their iconic twin peaks, are particularly stunning in early summer, offering some of the most photographed scenery in Colorado. The Royal Gorge near Cañon City, with its impressive bridge and thrilling zip lines, is another great destination for those seeking adventure.
July
Weather: July is the peak of summer in Colorado, with temperatures ranging from 60°F to 90°F (16°C to 32°C) in most areas. The weather is generally warm and sunny, although afternoon thunderstorms are common, particularly in the mountains. The higher elevations offer a respite from the heat, with cooler temperatures and lush, green landscapes.
Clothing: Light, comfortable clothing is necessary for July, including shorts, t-shirts, and breathable fabrics. A light jacket or fleece may be needed for cooler evenings in the mountains. Sunscreen, sunglasses, and a hat are essential for sun protection, especially at higher altitudes.
Landmarks: July is the perfect time to explore the San Juan Mountains in southwestern Colorado, where you can hike, mountain bike, and take scenic drives along the Million Dollar Highway. The town of Telluride hosts its famous Bluegrass Festival in July, attracting music lovers from around the world. The Great Sand Dunes National Park is another must-visit, where you can hike on the towering dunes, cool off in Medano Creek, and enjoy stargazing under some of the darkest skies in the country.
August
Weather: August continues the warm summer weather in Colorado, with temperatures similar to July, ranging from 60°F to 88°F (16°C to 31°C). Afternoon thunderstorms remain common, particularly in the mountains, but overall the weather is ideal for outdoor activities. The high elevations provide a cool escape from the heat of the plains.
Clothing: Lightweight, breathable clothing is best for August, along with a light jacket for cooler mornings and evenings in the mountains. Rain gear is advisable for those hiking or spending time outdoors in the afternoon when thunderstorms are most likely.
Landmarks: August is a great time to visit Aspen and the nearby Maroon Bells, where the summer wildflowers are in full bloom. The Crested Butte Wildflower Festival, typically held in July or early August, showcases the region’s incredible floral diversity. The Animas River in Durango offers exciting whitewater rafting opportunities, while the Durango & Silverton Narrow Gauge Railroad provides a scenic journey through the San Juan Mountains, offering stunning views of the rugged landscape.
September
Weather: September brings the first hints of fall to Colorado, with temperatures ranging from 50°F to 75°F (10°C to 24°C). The weather remains pleasant, with fewer thunderstorms and cooler temperatures, especially in the evenings. The mountains begin to show their autumn colors, making it a popular time for leaf-peeping.
Clothing: Light layers, including long-sleeved shirts and light jackets, are ideal for September. Comfortable hiking boots are recommended for exploring trails, and a warmer jacket may be needed for higher elevations or cooler evenings.
Landmarks: September is the perfect time to visit the San Juan Skyway, a scenic drive that loops through some of Colorado’s most beautiful mountain landscapes, including the towns of Ouray, Silverton, and Durango. The vibrant fall colors make this one of the most picturesque times to explore the state. Rocky Mountain National Park is also stunning in September, with golden aspens and cooler temperatures making for ideal hiking conditions. The town of Estes Park, the gateway to the park, hosts its annual Elk Fest, celebrating the fall rut with educational exhibits, live music, and elk-viewing tours.
October
Weather: October sees a significant drop in temperatures, ranging from 40°F to 65°F (4°C to 18°C). The fall foliage reaches its peak early in the month, particularly in the mountains. The weather can be variable, with sunny days giving way to cooler, rainy, or even snowy conditions, especially in higher elevations.
Clothing: Warmer clothing is necessary in October, including sweaters, jackets, and long pants. A heavier coat may be needed for cold days, particularly in the mountains, where early snowfall is possible. Waterproof footwear is recommended for wet or muddy trails.
Landmarks: October is a great time to visit the Rocky Mountain National Park, where the fall foliage creates a stunning landscape. The Maroon Bells near Aspen are also spectacular, with golden aspens reflecting in the calm waters of Maroon Lake. For a unique fall experience, visit the town of Cripple Creek, where you can take a scenic drive through the aspen groves, visit historic mines, and explore the haunted history of this former gold rush town.
November
Weather: November brings the onset of winter to Colorado, with temperatures dropping to between 30°F and 55°F (-1°C to 13°C). Snowfall becomes more frequent, particularly in the mountains, signaling the start of the ski season. The plains and valleys experience cold temperatures with occasional snow and more frequent overcast days.
Clothing: Warm, layered clothing is essential in November, including a winter coat, gloves, and a hat. In the mountains, insulated boots and waterproof outerwear are recommended for staying comfortable in snowy conditions.
Landmarks: November marks the beginning of the ski season in Colorado, with resorts like Breckenridge, Vail, and Keystone opening their slopes. For a cultural experience, visit Denver for the annual Denver Film Festival, which showcases independent films from around the world. The town of Manitou Springs, near Colorado Springs, is also a great destination, offering access to Pikes Peak and the historic Manitou Incline, a challenging hike that rewards you with stunning views of the surrounding area.
December
Weather: December in Colorado is characterized by cold temperatures and frequent snowfall, especially in the mountains. Average temperatures range from 20°F to 45°F (-6°C to 7°C). The state’s ski resorts are in full swing, attracting visitors from around the world. The plains and lower elevations experience cold, with occasional snow and frosty mornings.
Clothing: Heavy winter clothing, including down jackets, thermal layers, gloves, and scarves, is necessary for staying warm in December. Waterproof boots and snow gear are essential for those visiting the mountains or participating in winter sports.
Landmarks: December is the perfect time to enjoy Colorado’s winter wonderland. Visit the charming town of Breckenridge, where you can enjoy world-class skiing and the festive atmosphere of the annual Lighting of Breckenridge and the Race of the Santas. The historic Stanley Hotel in Estes Park offers a cozy winter retreat with a touch of history and is known for its connections to Stephen King’s “The Shining.” For a unique winter experience, visit the Ice Castles in Dillon, where you can explore massive ice structures illuminated by colorful lights.
