Shelby, MT vs Phoenix, AZ

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

Shelby is cooler than Phoenix (42.2°F vs 72.5°F annual avg) and similar rainfall to it (12.1 in vs 8.9 in per year). Shelby has a Semi-arid (cold) climate; Phoenix a Desert (hot) climate.

Shelby, MT

Annual avg
42.2°F
Annual precip
12.1 in
Warmest month
July (82.2°F)
Coldest month
January (6.1°F)
Annual swing
48°F
Semi-arid (cold) BSk USDA Zone 6a

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

Shelby

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 Shelby Phoenix
High Low Precip High Low Precip
January 31.4°F 6.1°F 0.46 in 65.4°F 44.1°F 1.17 in
February 35.3°F 9.9°F 0.36 in 68.1°F 46.1°F 1.21 in
March 43.9°F 18.4°F 0.63 in 75.0°F 50.9°F 1.09 in
April 54.2°F 28.4°F 1.34 in 82.5°F 56.6°F 0.35 in
May 64.4°F 38.0°F 1.77 in 91.5°F 64.7°F 0.19 in
June 72.6°F 46.0°F 2.85 in 101.5°F 72.7°F 0.03 in
July 82.2°F 51.5°F 1.14 in 104.0°F 80.8°F 0.81 in
August 82.2°F 49.3°F 0.85 in 102.5°F 80.5°F 0.96 in
September 70.9°F 40.5°F 1.01 in 97.5°F 74.7°F 0.71 in
October 56.2°F 29.0°F 0.74 in 86.3°F 62.7°F 0.67 in
November 42.0°F 17.6°F 0.52 in 74.0°F 50.8°F 0.90 in
December 33.1°F 9.1°F 0.46 in 63.9°F 42.7°F 0.81 in
Shelby overview
Full climate profile
 Phoenix overview
Full climate profile