Joliet, IL vs Denver, CO

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

Joliet is about the same temperature as Denver (50.4°F vs 51.4°F annual avg) and wetter than it (38 in vs 15.4 in per year). Joliet has a Hot-summer humid continental climate; Denver a Semi-arid (cold) climate.

Joliet, IL

Annual avg
50.4°F
Annual precip
38 in
Warmest month
July (83.6°F)
Coldest month
January (16.6°F)
Annual swing
50°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

Joliet

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 Joliet Denver
High Low Precip High Low Precip
January 31.1°F 16.6°F 1.99 in 46.5°F 17.6°F 0.46 in
February 35.4°F 19.8°F 1.78 in 47.5°F 19.3°F 0.53 in
March 47.0°F 29.2°F 2.27 in 56.4°F 27.1°F 1.12 in
April 59.9°F 38.9°F 3.93 in 62.5°F 33.7°F 1.67 in
May 71.0°F 49.4°F 4.53 in 71.7°F 43.4°F 2.29 in
June 80.3°F 59.9°F 4.30 in 84.1°F 52.9°F 1.68 in
July 83.6°F 64.1°F 4.55 in 90.2°F 59.3°F 2.12 in
August 81.8°F 62.9°F 3.97 in 87.9°F 57.2°F 1.83 in
September 76.2°F 55.3°F 3.17 in 80.1°F 48.2°F 1.51 in
October 63.3°F 43.4°F 3.14 in 66.7°F 35.7°F 0.98 in
November 48.5°F 32.3°F 2.46 in 54.8°F 25.5°F 0.70 in
December 36.4°F 22.4°F 1.94 in 45.9°F 17.7°F 0.47 in
Joliet overview
Full climate profile
 Denver overview
Full climate profile