Castle Valley, UT vs Phoenix, AZ

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

Castle Valley is cooler than Phoenix (54.7°F vs 72.5°F annual avg) and similar rainfall to it (12.3 in vs 8.9 in per year). Castle Valley has a Semi-arid (cold) climate; Phoenix a Desert (hot) climate.

Castle Valley, UT

Annual avg
54.7°F
Annual precip
12.3 in
Warmest month
July (95.2°F)
Coldest month
January (17.9°F)
Annual swing
53.1°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

Castle Valley

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 Castle Valley Phoenix
High Low Precip High Low Precip
January 38.8°F 17.9°F 0.95 in 65.4°F 44.1°F 1.17 in
February 46.2°F 25.1°F 1.06 in 68.1°F 46.1°F 1.21 in
March 58.1°F 33.4°F 1.11 in 75.0°F 50.9°F 1.09 in
April 65.9°F 40.5°F 0.81 in 82.5°F 56.6°F 0.35 in
May 76.6°F 49.9°F 0.88 in 91.5°F 64.7°F 0.19 in
June 89.3°F 60.5°F 0.59 in 101.5°F 72.7°F 0.03 in
July 95.2°F 67.7°F 0.97 in 104.0°F 80.8°F 0.81 in
August 92.3°F 64.8°F 1.06 in 102.5°F 80.5°F 0.96 in
September 83.4°F 56.0°F 1.31 in 97.5°F 74.7°F 0.71 in
October 68.0°F 41.7°F 1.48 in 86.3°F 62.7°F 0.67 in
November 52.3°F 29.7°F 1.11 in 74.0°F 50.8°F 0.90 in
December 39.0°F 19.4°F 1.01 in 63.9°F 42.7°F 0.81 in
Castle Valley overview
Full climate profile
 Phoenix overview
Full climate profile