Union, OR vs Denver, CO

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

Union is cooler than Denver (49°F vs 51.4°F annual avg) and similar rainfall to it (14.8 in vs 15.4 in per year). Both cities share a Semi-arid (cold) climate (BSk).

Union, OR

Annual avg
49°F
Annual precip
14.8 in
Warmest month
August (86.9°F)
Coldest month
December (25.1°F)
Annual swing
36.5°F
Semi-arid (cold) BSk USDA Zone 8a

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

Union

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 Union Denver
High Low Precip High Low Precip
January 39.5°F 25.4°F 1.19 in 46.5°F 17.6°F 0.46 in
February 44.5°F 27.0°F 0.93 in 47.5°F 19.3°F 0.53 in
March 52.5°F 30.7°F 1.26 in 56.4°F 27.1°F 1.12 in
April 58.9°F 34.4°F 1.68 in 62.5°F 33.7°F 1.67 in
May 67.5°F 41.4°F 2.47 in 71.7°F 43.4°F 2.29 in
June 74.4°F 46.6°F 1.69 in 84.1°F 52.9°F 1.68 in
July 85.8°F 50.9°F 0.48 in 90.2°F 59.3°F 2.12 in
August 86.9°F 50.0°F 0.46 in 87.9°F 57.2°F 1.83 in
September 77.1°F 42.6°F 0.70 in 80.1°F 48.2°F 1.51 in
October 62.7°F 34.4°F 1.15 in 66.7°F 35.7°F 0.98 in
November 47.9°F 30.5°F 1.53 in 54.8°F 25.5°F 0.70 in
December 39.0°F 25.1°F 1.22 in 45.9°F 17.7°F 0.47 in
Union overview
Full climate profile
 Denver overview
Full climate profile