Denver, Colorado—often called the Mile High City—offers a unique blend of sunny skies, mountain views, and four distinct seasons. Sitting at the edge of the Rocky Mountains, Denver’s weather can change quickly, making it essential for travelers to know what to expect throughout the year.
This month-by-month guide breaks down Denver’s weather, highlights seasonal activities, and helps you decide the best time to visit based on your travel style.
Overview of Denver’s Climate
Denver has a semi-arid climate, meaning:
- Over 300 sunny days per year
- Low humidity
- Big temperature swings between day and night
- Occasional surprise snow—even in spring or fall
Elevation plays a major role, so weather can feel cooler than other U.S. cities at similar latitudes.
Denver Weather by Month
January: Cold and Snowy
- Average High: ~45°F (7°C)
- Average Low: ~18°F (-8°C)
January is Denver’s coldest month. Snowfall is common, but many days are sunny and dry.
Best for:
- Ski trips to nearby resorts
- Winter festivals
- Budget travelers (lower hotel prices)
What to pack: Heavy coat, gloves, boots, layers
February: Cold but Bright
- Average High: ~47°F (8°C)
- Average Low: ~20°F (-6°C)
February remains wintery, but longer daylight and sunshine make it feel more pleasant.
Best for:
- Snow sports
- Valentine’s getaways
- Fewer crowds downtown
March: Unpredictable Early Spring
- Average High: ~56°F (13°C)
- Average Low: ~27°F (-3°C)
March is famously unpredictable—warm sunshine one day, snowstorms the next.
Best for:
- Shoulder-season travel
- Skiing combined with city exploration
Tip: Pack for both winter and spring.
April: Spring Arrives (Sort Of)
- Average High: ~62°F (17°C)
- Average Low: ~34°F (1°C)
April brings blooming trees, rain showers, and the occasional late snowstorm.
Best for:
- Museums and breweries
- Outdoor walks between weather changes
May: Mild and Green
- Average High: ~72°F (22°C)
- Average Low: ~43°F (6°C)
May is one of the most pleasant months, with warmer days and greener landscapes.
Best for:
- Hiking at lower elevations
- City sightseeing
- Festivals and outdoor patios
June: Warm and Sunny
- Average High: ~83°F (28°C)
- Average Low: ~52°F (11°C)
Summer officially arrives with warm days and cool nights. Afternoon thunderstorms are possible.
Best for:
- Outdoor adventures
- Red Rocks Amphitheatre concerts
- Road trips into the mountains
July: Hottest Month
- Average High: ~90°F (32°C)
- Average Low: ~57°F (14°C)
July is hot but rarely humid. Evenings cool down nicely.
Best for:
- Summer festivals
- Baseball games
- Mountain escapes to beat the heat
Tip: Stay hydrated due to altitude and dry air.
August: Warm with Storms
- Average High: ~88°F (31°C)
- Average Low: ~56°F (13°C)
Similar to July, but with slightly more frequent afternoon thunderstorms.
Best for:
- Hiking
- Outdoor dining
- Late-summer events
September: Perfect Fall Weather
- Average High: ~79°F (26°C)
- Average Low: ~47°F (8°C)
September is often considered the best month to visit Denver.
Best for:
- Fall foliage in nearby mountains
- Comfortable sightseeing
- Food and beer festivals
October: Cool and Colorful
- Average High: ~67°F (19°C)
- Average Low: ~36°F (2°C)
Crisp air, golden leaves, and occasional early snow make October picturesque.
Best for:
- Scenic drives
- Photography
- Halloween events
November: Cold Returns
- Average High: ~54°F (12°C)
- Average Low: ~25°F (-4°C)
Winter starts creeping back, with colder nights and sporadic snowfall.
Best for:
- Off-season travel
- Holiday markets
- Museum visits
December: Festive and Chilly
- Average High: ~45°F (7°C)
- Average Low: ~19°F (-7°C)
December combines winter weather with holiday charm and festive lights.
Best for:
- Christmas events
- Ski season kickoff
- Cozy winter getaways
Denver Temperature by Month
| Month | Avg High | Avg Low | Weather Highlights | Travel Notes |
|---|---|---|---|---|
| January | 45°F (7°C) | 18°F (-8°C) | Cold, snowy, sunny days | Best for skiing, low hotel prices |
| February | 47°F (8°C) | 20°F (-6°C) | Cold but bright | Fewer crowds, winter activities |
| March | 56°F (13°C) | 27°F (-3°C) | Unpredictable, snow + sun | Pack layers, shoulder season |
| April | 62°F (17°C) | 34°F (1°C) | Spring showers, late snow | Good for indoor attractions |
| May | 72°F (22°C) | 43°F (6°C) | Mild, greener landscapes | Ideal for sightseeing & hiking |
| June | 83°F (28°C) | 52°F (11°C) | Warm, sunny, thunderstorms | Great for outdoor adventures |
| July | 90°F (32°C) | 57°F (14°C) | Hot, dry, sunny | Peak summer travel |
| August | 88°F (31°C) | 56°F (13°C) | Warm, afternoon storms | Hiking and festivals |
| September | 79°F (26°C) | 47°F (8°C) | Cool, dry, pleasant | Best month to visit |
| October | 67°F (19°C) | 36°F (2°C) | Crisp air, fall colors | Scenic drives, photography |
| November | 54°F (12°C) | 25°F (-4°C) | Cold returns, light snow | Budget-friendly travel |
| December | 45°F (7°C) | 19°F (-7°C) | Chilly, festive, snowy | Holiday events, ski season |
10 FAQs for Denver Weather
- What is the best month to visit Denver for good weather?
September offers mild temperatures, low rainfall, and clear skies, making it ideal for most travelers. - What is the coldest month in Denver?
January is typically the coldest month, with average lows around 18°F (-8°C). - What is the hottest month in Denver?
July is usually the hottest month, with daytime highs near 90°F (32°C). - Does it snow in Denver every year?
Yes, Denver experiences snowfall every winter, though amounts vary from year to year. - Can it snow in Denver in spring?
Yes, snow is common in March and April and can occasionally occur in May. - How much sunshine does Denver get?
Denver averages over 300 sunny days per year, even during winter. - Is Denver weather humid?
No, Denver has a dry, semi-arid climate with low humidity year-round. - What should I wear when visiting Denver?
Layered clothing is recommended due to rapid temperature changes between day and night. - Are summers in Denver uncomfortable?
Summers are warm but generally comfortable due to low humidity and cooler evenings. - When is the best time to visit Denver for outdoor activities?
June through September is best for hiking, sightseeing, and outdoor events. - Does Denver get a lot of rain?
No, Denver receives relatively low rainfall compared to many U.S. cities. - Which months have the most precipitation in Denver?
April through July tend to have the most rain, often as brief afternoon storms. - Is fall a good time to visit Denver?
Yes, fall offers crisp air, colorful foliage, and fewer crowds. - Does Denver experience extreme weather?
Denver can experience sudden snowstorms, hail, or temperature swings, especially in spring. - How cold does Denver get in winter?
Winter temperatures often fall below freezing at night but frequently warm up during sunny days. - Is Denver windy?
Denver can be windy at times, especially in late winter and early spring. - How does Denver’s altitude affect visitors?
The high elevation can cause quicker dehydration and stronger sun exposure. - Is December a good time to visit Denver?
December is great for holiday events and ski trips but comes with cold temperatures. - What is the best month to visit Denver on a budget?
November through February (excluding holidays) usually offer lower hotel prices. - Does Denver have four distinct seasons?
Yes, Denver experiences clear seasonal changes, each offering unique weather and travel experiences.
Best Time to Visit Denver
- Best overall weather: May, June, September
- Best for skiing: January–March
- Best for budget travelers: November–February (excluding holidays)
- Best for outdoor activities: June–September