Best time to visit Denver
June. Month by month below, with the weather, what's on and what it costs to fly there from your city.
June
Three sources favor warm sunny weather: summer overall, with May, June and September also named by one weather source. June is the month all three cover.
- “the best time to visit is in the summer, when the temperature ranges from the mid 50s to the high 80s” suiteness.com
- “The best times to visit Denver, Colorado for warm and sunny weather are in May, June and September” weather2travel.com
- “the best time to go is in the Summer” fitfashiontraveler.com
3 of the 8 travel guides we read name these months.
Denver month by month
Average high and low in Denver
JanuaryChecking fares…Mountain skiing is more reliable in January than December.One of the coldest months, with highs about 48F.National Western Stock Show
FebruaryChecking fares…Crowds in the city and mountains are often thinner, before March spring break.Temperatures start to creep up, with early signs of spring.
MarchChecking fares…Spring Break season arrives in March.The harshest weather is usually past by late March.
AprilChecking fares…Colorado snowpack generally peaks in April.April averages a 62F high.
MayChecking fares…May averages a 72F high and 42F low.Weather2travel lists May for warm and sunny weather.
Best timeJuneChecking fares…June averages an 81F high.
JulyChecking fares…July is the warmest month on the table, with an 88F average high.
AugustChecking fares…Average August high is 86F, with low humidity and cool evenings.
SeptemberChecking fares…September is among the months listed for warm and sunny weather.Fall in Colorado runs September to October; aspen peak is mid-September to late October.
OctoberChecking fares…Shoulder season with fewer crowds and flexible hotel rates; foliage is best at high elevations.October averages a 66F high.
NovemberChecking fares…Winter weather window of roughly November through March can bring extreme days.Denver Christkindlmarket
DecemberChecking fares…December ski conditions depend on the year; snowpack may arrive late.December highs average about 46F.
Weather: Denver averages (1991 to 2020 averages), as listed in its climate table on Wikipedia.
Every date to Denver from your city
Live fares from your airport. Watch them and we alert you when they drop.
What's on in Denver
Festivals and seasons through the year
Busy, quiet and what to watch for
Busiest
- Summer (June to August, Colorado)Colorado's busiest season: crowds, rising hotel rates, reservations fill quickly.
- Mid-winter ski seasonTravelers head up the I-70 corridor to the ski resorts.
Quietest
- FebruaryCrowds can be thinner in Denver and the mountains.
- Fall shoulder season (Colorado)Fewer crowds and more flexible hotel rates.
Watch for
- November through MarchAt least a few days of extreme winter weather each month.
- Winter drivingRoads are not always heavily salted; drive slowly and consider higher clearance for mountain roads.
- Summer hiking at altitudeTemperatures drop fast at higher elevations, and the altitude can leave you out of breath.
Questions people ask
- What is the weather like in Denver during May?
- May averages a 72F high and 42F low, with about 2.56 inches of precipitation.
- How hot does Colorado get in the summer?
- Denver's average August high is 86F, with low humidity and cool evenings; July averages 88F.
- Does it snow a lot in Colorado?
- In Denver snow doesn't stay on the ground long; the mountains get the snow, with ski season from late November through February.
- What is Colorado's hottest month?
- In Denver, July has the highest average high at 88F.
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