Grass Range, MT vs Phoenix, AZ

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

Grass Range is cooler than Phoenix (45.5°F vs 72.5°F annual avg) and wetter than it (17.9 in vs 8.9 in per year). Grass Range has a Semi-arid (cold) climate; Phoenix a Desert (hot) climate.

Grass Range, MT

Annual avg
45.5°F
Annual precip
17.9 in
Warmest month
July (83.3°F)
Coldest month
January (14.2°F)
Annual swing
42.4°F
Semi-arid (cold) BSk USDA Zone 6b

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

Grass Range

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 Grass Range Phoenix
High Low Precip High Low Precip
January 37.2°F 14.2°F 0.68 in 65.4°F 44.1°F 1.17 in
February 38.8°F 15.7°F 0.51 in 68.1°F 46.1°F 1.21 in
March 48.2°F 23.0°F 0.87 in 75.0°F 50.9°F 1.09 in
April 57.1°F 30.7°F 1.85 in 82.5°F 56.6°F 0.35 in
May 66.0°F 39.5°F 3.39 in 91.5°F 64.7°F 0.19 in
June 74.0°F 47.4°F 3.22 in 101.5°F 72.7°F 0.03 in
July 83.3°F 52.9°F 1.70 in 104.0°F 80.8°F 0.81 in
August 82.7°F 51.9°F 1.67 in 102.5°F 80.5°F 0.96 in
September 72.6°F 43.5°F 1.46 in 97.5°F 74.7°F 0.71 in
October 58.9°F 33.4°F 1.25 in 86.3°F 62.7°F 0.67 in
November 46.3°F 22.7°F 0.71 in 74.0°F 50.8°F 0.90 in
December 37.7°F 15.2°F 0.55 in 63.9°F 42.7°F 0.81 in
Grass Range overview
Full climate profile
 Phoenix overview
Full climate profile