Roundup, MT vs Denver, CO

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

Roundup is cooler than Denver (46.5°F vs 51.4°F annual avg) and similar rainfall to it (14.9 in vs 15.4 in per year). Both cities share a Semi-arid (cold) climate (BSk).

Roundup, MT

Annual avg
46.5°F
Annual precip
14.9 in
Warmest month
July (88.9°F)
Coldest month
January (13.1°F)
Annual swing
46.1°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

Roundup

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 Roundup Denver
High Low Precip High Low Precip
January 37.2°F 13.1°F 0.37 in 46.5°F 17.6°F 0.46 in
February 40.7°F 14.9°F 0.42 in 47.5°F 19.3°F 0.53 in
March 50.6°F 22.1°F 0.71 in 56.4°F 27.1°F 1.12 in
April 59.9°F 30.0°F 1.71 in 62.5°F 33.7°F 1.67 in
May 69.1°F 39.3°F 2.55 in 71.7°F 43.4°F 2.29 in
June 78.3°F 47.8°F 2.89 in 84.1°F 52.9°F 1.68 in
July 88.9°F 53.5°F 1.70 in 90.2°F 59.3°F 2.12 in
August 87.9°F 51.1°F 1.21 in 87.9°F 57.2°F 1.83 in
September 76.9°F 42.4°F 1.20 in 80.1°F 48.2°F 1.51 in
October 60.9°F 31.7°F 1.22 in 66.7°F 35.7°F 0.98 in
November 46.6°F 21.8°F 0.49 in 54.8°F 25.5°F 0.70 in
December 37.2°F 14.2°F 0.41 in 45.9°F 17.7°F 0.47 in
Roundup overview
Full climate profile
 Denver overview
Full climate profile