When to go
The Best Time to Visit Denver
Month-by-month climate data for Denver, United States — daily highs and lows, rain days, and an honest verdict for every month of the year.
May–October, December–March. Spring + autumn for hiking; winter for ski-resort day-trips to Vail and Aspen.
Warmest in Denver: Jul (32°C / 90°F) · Coolest: Jan (5°C / 41°F) · Wettest: May (~10 rain days)
Daily highs / lows in °C · bars show rain days per month · ERA5 climate normals (2020–2024)
Denver climate, month by month
January
5° / -9°C
~4 rain days
Fair
February
5° / -11°C
~7 rain days
Fair
March
10° / -5°C
~9 rain days
Fair
April
16° / 0°C
~7 rain days
Excellent
May
22° / 6°C
~10 rain days
Excellent
June
29° / 13°C
~7 rain days
Excellent
July
32° / 16°C
~6 rain days
Good
August
32° / 16°C
~6 rain days
Good
September
28° / 11°C
~5 rain days
Excellent
October
20° / 4°C
~3 rain days
Excellent
November
12° / -3°C
~5 rain days
Good
December
8° / -5°C
~4 rain days
Fair
Plan around it
Dates locked in? Start from the Denver travel guide or jump straight to a 3-day, 5-day or 7-day itinerary.