Basalt, ID vs Phoenix, AZ

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

Basalt is cooler than Phoenix (47.2°F vs 72.5°F annual avg) and similar rainfall to it (12.1 in vs 8.9 in per year). Basalt has a Semi-arid (cold) climate; Phoenix a Desert (hot) climate.

Basalt, ID

Annual avg
47.2°F
Annual precip
12.1 in
Warmest month
July (86.9°F)
Coldest month
January (16.8°F)
Annual swing
47.4°F
Semi-arid (cold) BSk USDA Zone 7a

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

Basalt

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 Basalt Phoenix
High Low Precip High Low Precip
January 31.2°F 16.8°F 0.99 in 65.4°F 44.1°F 1.17 in
February 37.0°F 20.5°F 0.73 in 68.1°F 46.1°F 1.21 in
March 48.8°F 29.1°F 1.10 in 75.0°F 50.9°F 1.09 in
April 57.4°F 34.7°F 1.40 in 82.5°F 56.6°F 0.35 in
May 67.6°F 42.8°F 1.75 in 91.5°F 64.7°F 0.19 in
June 76.7°F 49.8°F 1.03 in 101.5°F 72.7°F 0.03 in
July 86.9°F 56.0°F 0.50 in 104.0°F 80.8°F 0.81 in
August 85.9°F 54.2°F 0.60 in 102.5°F 80.5°F 0.96 in
September 75.1°F 46.0°F 0.97 in 97.5°F 74.7°F 0.71 in
October 60.5°F 35.0°F 1.12 in 86.3°F 62.7°F 0.67 in
November 44.8°F 25.5°F 0.75 in 74.0°F 50.8°F 0.90 in
December 32.1°F 17.5°F 1.11 in 63.9°F 42.7°F 0.81 in
Basalt overview
Full climate profile
 Phoenix overview
Full climate profile