Twin Falls, ID vs Phoenix, AZ

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

Twin Falls is cooler than Phoenix (51.6°F vs 72.5°F annual avg) and similar rainfall to it (9.2 in vs 8.9 in per year). Twin Falls has a Semi-arid (cold) climate; Phoenix a Desert (hot) climate.

Twin Falls, ID

Annual avg
51.6°F
Annual precip
9.2 in
Warmest month
July (92.1°F)
Coldest month
January (22.4°F)
Annual swing
44.1°F
Semi-arid (cold) BSk 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

Twin Falls

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 Twin Falls Phoenix
High Low Precip High Low Precip
January 40.4°F 22.4°F 1.04 in 65.4°F 44.1°F 1.17 in
February 45.6°F 24.7°F 0.78 in 68.1°F 46.1°F 1.21 in
March 55.9°F 31.9°F 0.87 in 75.0°F 50.9°F 1.09 in
April 62.6°F 35.8°F 1.02 in 82.5°F 56.6°F 0.35 in
May 72.7°F 44.8°F 1.22 in 91.5°F 64.7°F 0.19 in
June 81.0°F 51.7°F 0.67 in 101.5°F 72.7°F 0.03 in
July 92.1°F 58.3°F 0.16 in 104.0°F 80.8°F 0.81 in
August 90.5°F 55.5°F 0.34 in 102.5°F 80.5°F 0.96 in
September 79.9°F 47.4°F 0.33 in 97.5°F 74.7°F 0.71 in
October 66.9°F 37.0°F 0.70 in 86.3°F 62.7°F 0.67 in
November 50.7°F 28.0°F 0.76 in 74.0°F 50.8°F 0.90 in
December 39.6°F 22.6°F 1.31 in 63.9°F 42.7°F 0.81 in
Twin Falls overview
Full climate profile
 Phoenix overview
Full climate profile