Aspen, CO vs Denver, CO

Side-by-side comparison of monthly climate normals (NOAA 1991-2020).

Aspen is cooler than Denver (40.6°F vs 51.4°F annual avg) and wetter than it (24.5 in vs 15.4 in per year). Aspen has a Warm-summer humid continental climate; Denver a Semi-arid (cold) climate.

Aspen, CO

Annual avg
40.6°F
Annual precip
24.5 in
Warmest month
July (75.5°F)
Coldest month
January (9.9°F)
Annual swing
40.9°F
Warm-summer humid continental Dfb USDA Zone 6a

Denver, CO

Annual avg
51.4°F
Annual precip
15.4 in
Warmest month
July (90.2°F)
Coldest month
January (17.6°F)
Annual swing
43°F
Semi-arid (cold) BSk USDA Zone 7a

Best months to visit each city

Aspen

J
F
M
A
M
J
J
A
S
O
N
D

Denver

J
F
M
A
M
J
J
A
S
O
N
D

Month-by-month comparison

Month Aspen Denver
High Low Precip High Low Precip
January 32.0°F 9.9°F 1.93 in 46.5°F 17.6°F 0.46 in
February 35.3°F 12.5°F 2.23 in 47.5°F 19.3°F 0.53 in
March 42.7°F 19.8°F 2.59 in 56.4°F 27.1°F 1.12 in
April 49.7°F 26.6°F 2.68 in 62.5°F 33.7°F 1.67 in
May 60.0°F 35.0°F 2.17 in 71.7°F 43.4°F 2.29 in
June 70.6°F 42.2°F 1.06 in 84.1°F 52.9°F 1.68 in
July 75.5°F 48.1°F 1.97 in 90.2°F 59.3°F 2.12 in
August 73.1°F 47.1°F 1.75 in 87.9°F 57.2°F 1.83 in
September 66.9°F 40.0°F 1.89 in 80.1°F 48.2°F 1.51 in
October 55.2°F 29.8°F 2.09 in 66.7°F 35.7°F 0.98 in
November 41.6°F 19.4°F 2.09 in 54.8°F 25.5°F 0.70 in
December 31.9°F 10.3°F 2.00 in 45.9°F 17.7°F 0.47 in
Aspen overview
Full climate profile
 Denver overview
Full climate profile