Verdict: Excellent month
Denver Weather in October
October hits the sweet spot in Denver — highs around 20°C (68°F), ideal for a full day on foot. Rain is a non-issue, with only ~3 wet days in an average year. Overall, October is one of the best months of the year to be in Denver.
Average high
20°C / 68°F
Average low
4°C / 39°F
Rain days
~3
Precipitation
18 mm
What to pack for Denver in October
- Layers — t-shirts under a light jacket or sweater
- Evenings turn genuinely cool — pack a warm layer for after dark
- Comfortable walking shoes — every guide on this site assumes you'll use them
October against the rest of the year
Warmest in Denver: Jul (32°C / 90°F) · Coolest: Jan (5°C / 41°F) · Wettest: May (~10 rain days)
5°
-9°
Jan
5°
-11°
Feb
10°
-5°
Mar
16°
0°
Apr
22°
6°
May
29°
13°
Jun
32°
16°
Jul
32°
16°
Aug
28°
11°
Sep
20°
4°
Oct
12°
-3°
Nov
8°
-5°
Dec
Daily highs / lows in °C · bars show rain days per month · ERA5 climate normals (2020–2024)