St. Marys, PA vs Denver, CO

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

St. Marys is cooler than Denver (45.1°F vs 51.4°F annual avg) and wetter than it (46.4 in vs 15.4 in per year). St. Marys has a Warm-summer humid continental climate; Denver a Semi-arid (cold) climate.

St. Marys, PA

Annual avg
45.1°F
Annual precip
46.4 in
Warmest month
July (78.5°F)
Coldest month
January (13.1°F)
Annual swing
45°F
Pleasant months
3 / 12
Warm-summer humid continental Dfb 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

St. Marys

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 St. Marys Denver
High Low Precip High Low Precip
January 30.5°F 13.1°F 3.47 in 46.5°F 17.6°F 0.46 in
February 33.3°F 13.5°F 2.68 in 47.5°F 19.3°F 0.53 in
March 42.5°F 20.9°F 3.38 in 56.4°F 27.1°F 1.12 in
April 56.4°F 31.0°F 3.95 in 62.5°F 33.7°F 1.67 in
May 67.4°F 41.9°F 4.32 in 71.7°F 43.4°F 2.29 in
June 74.7°F 50.8°F 4.48 in 84.1°F 52.9°F 1.68 in
July 78.5°F 55.0°F 4.67 in 90.2°F 59.3°F 2.12 in
August 77.4°F 53.7°F 4.25 in 87.9°F 57.2°F 1.83 in
September 71.1°F 47.5°F 3.95 in 80.1°F 48.2°F 1.51 in
October 58.7°F 37.0°F 3.87 in 66.7°F 35.7°F 0.98 in
November 45.6°F 28.0°F 3.78 in 54.8°F 25.5°F 0.70 in
December 34.5°F 19.7°F 3.60 in 45.9°F 17.7°F 0.47 in
St. Marys overview
Full climate profile
 Denver overview
Full climate profile