Rio Grande City, TX vs Phoenix, AZ

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

Rio Grande City is about the same temperature as Phoenix (74.4°F vs 72.5°F annual avg) and wetter than it (22.5 in vs 8.9 in per year). Rio Grande City has a Semi-arid (hot) climate; Phoenix a Desert (hot) climate.

Rio Grande City, TX

Annual avg
74.4°F
Annual precip
22.5 in
Warmest month
August (99.4°F)
Coldest month
January (45.2°F)
Annual swing
29.4°F
Pleasant months
1 / 12
Semi-arid (hot) BSh USDA Zone 10a

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

Rio Grande City

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 Rio Grande City Phoenix
High Low Precip High Low Precip
January 70.7°F 45.2°F 0.78 in 65.4°F 44.1°F 1.17 in
February 76.3°F 49.8°F 0.95 in 68.1°F 46.1°F 1.21 in
March 82.0°F 56.3°F 1.25 in 75.0°F 50.9°F 1.09 in
April 88.6°F 62.7°F 1.02 in 82.5°F 56.6°F 0.35 in
May 93.8°F 69.9°F 2.85 in 91.5°F 64.7°F 0.19 in
June 98.1°F 74.4°F 2.76 in 101.5°F 72.7°F 0.03 in
July 99.0°F 75.1°F 2.04 in 104.0°F 80.8°F 0.81 in
August 99.4°F 75.1°F 1.34 in 102.5°F 80.5°F 0.96 in
September 93.9°F 71.0°F 5.12 in 97.5°F 74.7°F 0.71 in
October 88.4°F 63.4°F 2.46 in 86.3°F 62.7°F 0.67 in
November 78.7°F 54.3°F 1.10 in 74.0°F 50.8°F 0.90 in
December 71.9°F 46.6°F 0.80 in 63.9°F 42.7°F 0.81 in
Rio Grande City overview
Full climate profile
 Phoenix overview
Full climate profile