Riverton, WY vs Phoenix, AZ

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

Riverton is cooler than Phoenix (43.9°F vs 72.5°F annual avg) and similar rainfall to it (9.5 in vs 8.9 in per year). Riverton has a Semi-arid (cold) climate; Phoenix a Desert (hot) climate.

Riverton, WY

Annual avg
43.9°F
Annual precip
9.5 in
Warmest month
July (87.9°F)
Coldest month
January (4.2°F)
Annual swing
54.9°F
Semi-arid (cold) BSk USDA Zone 5b

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

Riverton

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 Riverton Phoenix
High Low Precip High Low Precip
January 28.7°F 4.2°F 0.35 in 65.4°F 44.1°F 1.17 in
February 35.5°F 9.6°F 0.43 in 68.1°F 46.1°F 1.21 in
March 49.2°F 22.2°F 0.71 in 75.0°F 50.9°F 1.09 in
April 58.0°F 30.5°F 1.31 in 82.5°F 56.6°F 0.35 in
May 67.4°F 40.3°F 1.98 in 91.5°F 64.7°F 0.19 in
June 78.9°F 48.5°F 1.09 in 101.5°F 72.7°F 0.03 in
July 87.9°F 54.8°F 0.70 in 104.0°F 80.8°F 0.81 in
August 85.7°F 52.2°F 0.45 in 102.5°F 80.5°F 0.96 in
September 74.4°F 42.5°F 0.80 in 97.5°F 74.7°F 0.71 in
October 59.2°F 30.4°F 0.93 in 86.3°F 62.7°F 0.67 in
November 42.7°F 17.1°F 0.44 in 74.0°F 50.8°F 0.90 in
December 29.6°F 5.7°F 0.31 in 63.9°F 42.7°F 0.81 in
Riverton overview
Full climate profile
 Phoenix overview
Full climate profile