Lewistown, MT vs Phoenix, AZ

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

Lewistown is cooler than Phoenix (43.1°F vs 72.5°F annual avg) and wetter than it (17.2 in vs 8.9 in per year). Lewistown has a Semi-arid (cold) climate; Phoenix a Desert (hot) climate.

Lewistown, MT

Annual avg
43.1°F
Annual precip
17.2 in
Warmest month
July (81.6°F)
Coldest month
January (12.9°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

Lewistown

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 Lewistown Phoenix
High Low Precip High Low Precip
January 34.4°F 12.9°F 0.58 in 65.4°F 44.1°F 1.17 in
February 35.3°F 13.9°F 0.49 in 68.1°F 46.1°F 1.21 in
March 44.3°F 21.4°F 0.87 in 75.0°F 50.9°F 1.09 in
April 53.0°F 28.8°F 1.71 in 82.5°F 56.6°F 0.35 in
May 62.6°F 37.4°F 2.88 in 91.5°F 64.7°F 0.19 in
June 71.0°F 45.1°F 3.35 in 101.5°F 72.7°F 0.03 in
July 81.6°F 50.7°F 1.76 in 104.0°F 80.8°F 0.81 in
August 81.1°F 49.6°F 1.69 in 102.5°F 80.5°F 0.96 in
September 70.4°F 41.5°F 1.39 in 97.5°F 74.7°F 0.71 in
October 56.0°F 30.8°F 1.27 in 86.3°F 62.7°F 0.67 in
November 43.4°F 20.9°F 0.67 in 74.0°F 50.8°F 0.90 in
December 35.0°F 13.6°F 0.51 in 63.9°F 42.7°F 0.81 in
Lewistown overview
Full climate profile
 Phoenix overview
Full climate profile