Thermopolis, WY vs Denver, CO

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

Thermopolis is cooler than Denver (48.6°F vs 51.4°F annual avg) and similar rainfall to it (12 in vs 15.4 in per year). Both cities share a Semi-arid (cold) climate (BSk).

Thermopolis, WY

Annual avg
48.6°F
Annual precip
12 in
Warmest month
July (91.8°F)
Coldest month
January (11.5°F)
Annual swing
50.1°F
Semi-arid (cold) BSk USDA Zone 6b

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

Thermopolis

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 Thermopolis Denver
High Low Precip High Low Precip
January 37.3°F 11.5°F 0.39 in 46.5°F 17.6°F 0.46 in
February 41.6°F 15.6°F 0.44 in 47.5°F 19.3°F 0.53 in
March 54.0°F 25.6°F 0.85 in 56.4°F 27.1°F 1.12 in
April 61.9°F 33.4°F 1.63 in 62.5°F 33.7°F 1.67 in
May 71.4°F 42.5°F 2.53 in 71.7°F 43.4°F 2.29 in
June 82.9°F 50.6°F 1.31 in 84.1°F 52.9°F 1.68 in
July 91.8°F 57.1°F 0.76 in 90.2°F 59.3°F 2.12 in
August 89.8°F 55.0°F 0.50 in 87.9°F 57.2°F 1.83 in
September 79.7°F 45.7°F 1.21 in 80.1°F 48.2°F 1.51 in
October 64.5°F 33.8°F 1.27 in 66.7°F 35.7°F 0.98 in
November 48.6°F 21.7°F 0.60 in 54.8°F 25.5°F 0.70 in
December 37.5°F 12.3°F 0.46 in 45.9°F 17.7°F 0.47 in
Thermopolis overview
Full climate profile
 Denver overview
Full climate profile