St. Marys, WV vs Phoenix, AZ

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

St. Marys is cooler than Phoenix (53.1°F vs 72.5°F annual avg) and wetter than it (45.4 in vs 8.9 in per year). St. Marys has a Hot-summer humid continental climate; Phoenix a Desert (hot) climate.

St. Marys, WV

Annual avg
53.1°F
Annual precip
45.4 in
Warmest month
July (84.3°F)
Coldest month
January (21.6°F)
Annual swing
43.5°F
Pleasant months
2 / 12
Hot-summer humid continental Dfa USDA Zone 7b

Phoenix, AZ

Annual avg
72.5°F
Annual precip
8.9 in
Warmest month
July (104.0°F)
Coldest month
December (42.7°F)
Annual swing
39.1°F
Pleasant months
2 / 12
Desert (hot) BWh USDA Zone 9b

Best months to visit each city

St. Marys

J
F
M
A
M
J
J
A
S
O
N
D

Phoenix

J
F
M
A
M
J
J
A
S
O
N
D

Month-by-month comparison

Month St. Marys Phoenix
High Low Precip High Low Precip
January 39.4°F 21.6°F 3.50 in 65.4°F 44.1°F 1.17 in
February 43.2°F 23.1°F 3.21 in 68.1°F 46.1°F 1.21 in
March 52.8°F 29.8°F 3.97 in 75.0°F 50.9°F 1.09 in
April 65.9°F 39.5°F 3.70 in 82.5°F 56.6°F 0.35 in
May 74.0°F 50.2°F 4.67 in 91.5°F 64.7°F 0.19 in
June 81.2°F 59.2°F 4.69 in 101.5°F 72.7°F 0.03 in
July 84.3°F 63.7°F 4.86 in 104.0°F 80.8°F 0.81 in
August 83.5°F 62.3°F 4.18 in 102.5°F 80.5°F 0.96 in
September 77.9°F 55.1°F 3.30 in 97.5°F 74.7°F 0.71 in
October 66.6°F 43.2°F 2.89 in 86.3°F 62.7°F 0.67 in
November 54.2°F 32.5°F 2.85 in 74.0°F 50.8°F 0.90 in
December 43.9°F 26.5°F 3.58 in 63.9°F 42.7°F 0.81 in
St. Marys overview
Full climate profile
 Phoenix overview
Full climate profile