Naperville, IL vs Denver, CO

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

Naperville is about the same temperature as Denver (51.1°F vs 51.4°F annual avg) and wetter than it (39.9 in vs 15.4 in per year). Naperville has a Hot-summer humid continental climate; Denver a Semi-arid (cold) climate.

Naperville, IL

Annual avg
51.1°F
Annual precip
39.9 in
Warmest month
July (85.5°F)
Coldest month
January (16.8°F)
Annual swing
49.5°F
Pleasant months
1 / 12
Hot-summer humid continental Dfa USDA Zone 7a

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

Naperville

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 Naperville Denver
High Low Precip High Low Precip
January 32.8°F 16.8°F 2.12 in 46.5°F 17.6°F 0.46 in
February 37.5°F 19.8°F 1.96 in 47.5°F 19.3°F 0.53 in
March 49.5°F 28.5°F 2.46 in 56.4°F 27.1°F 1.12 in
April 62.5°F 38.3°F 4.10 in 62.5°F 33.7°F 1.67 in
May 73.6°F 48.7°F 4.46 in 71.7°F 43.4°F 2.29 in
June 82.9°F 58.5°F 4.65 in 84.1°F 52.9°F 1.68 in
July 85.5°F 63.1°F 3.86 in 90.2°F 59.3°F 2.12 in
August 83.7°F 62.1°F 4.40 in 87.9°F 57.2°F 1.83 in
September 78.0°F 53.8°F 3.30 in 80.1°F 48.2°F 1.51 in
October 65.2°F 42.9°F 3.56 in 66.7°F 35.7°F 0.98 in
November 50.1°F 31.8°F 2.81 in 54.8°F 25.5°F 0.70 in
December 37.7°F 22.6°F 2.22 in 45.9°F 17.7°F 0.47 in
Naperville overview
Full climate profile
 Denver overview
Full climate profile