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.
Timing is the first real decision when planning Denver— it drives crowds, prices and what's actually open. Here's how the year breaks down so you can pick dates that fit the trip you're building, not just the weather.
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.