June
Best time
28.1°C / 12.4°C
14 rain days
hot, rainy
- outside peak hazard season
Best time to visit Denver
Denver, United States — ranked month by month from data: temperature, rainfall, snow, and peak hazard seasons. The standouts: June, April.
Best · June & April
About Denver
Denver is the capital and most populous city of the U.S. state of Colorado. Officially a consolidated city and county, it is located in the South Platte River valley on the western edge of the High Plains, and is just east of the Front Range of the Rocky Mountains (Rockies).
— condensed from Wikipedia
Best months to visit
April
Best time
16°C / 0.3°C
14 rain days
mild, rainy
- outside peak hazard season
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OK — shoulder months
May
OK
20.2°C / 5.7°C
18 rain days
mild, very wet
- comfortable temperatures (avg high 20.2°C / 68°F)
- outside peak hazard season
July
OK
31.1°C / 15.8°C
17 rain days
hot, very wet
- outside peak hazard season
- warm evenings without humidity overload
November
OK
11.1°C / -3.6°C
7 rain days
cool, freezing nights
- manageable rain (7 days)
- outside peak hazard season
March
OK
11.6°C / -4.2°C
12 rain days
cool, freezing nights, rainy
- outside peak hazard season
December
OK
6°C / -7.6°C
8 rain days
chilly, freezing nights
- manageable rain (8 days)
- outside peak hazard season
February
OK
5.9°C / -9.5°C
11 rain days
chilly, freezing nights, rainy
- outside peak hazard season
January
OK
5.1°C / -9.1°C
10 rain days
chilly, freezing nights, rainy
- manageable rain (10 days)
- outside peak hazard season
Months to skip
September
Skip
27°C / 10.9°C
9 rain days
⚠ peak season
warm
- peak hurricane season
October
Skip
18.4°C / 2.9°C
8 rain days
⚠ peak season
mild
- peak hurricane season
August
Skip
29.9°C / 14.6°C
13 rain days
⚠ peak season
hot, rainy
- peak hurricane season
How we ranked these
Each month is scored on temperature comfort (18–27°C avg high is the sweet spot), rainfall (more rain days = lower score), snow days, and peak hazard seasons (hurricanes, monsoons, etc.). Green-tier months are within ideal range with no major issues. Yellow are workable but with trade-offs. Red has at least one significant problem — extreme heat or cold, heavy rain, or peak storm season.