Rock Island, WA vs Miami, FL

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

Rock Island is cooler than Miami (51.2°F vs 76.1°F annual avg) and drier than it (7.8 in vs 57.2 in per year). Rock Island has a Desert (cold) climate; Miami a Tropical monsoon climate.

Rock Island, WA

Annual avg
51.2°F
Annual precip
7.8 in
Warmest month
July (87.6°F)
Coldest month
January (24.1°F)
Annual swing
45.8°F
Pleasant months
2 / 12
Desert (cold) BWk USDA Zone 7b

Miami, FL

Annual avg
76.1°F
Annual precip
57.2 in
Warmest month
August (88.1°F)
Coldest month
January (61.2°F)
Annual swing
15.7°F
Pleasant months
6 / 12
Tropical monsoon Am USDA Zone 11b

Best months to visit each city

Rock Island

J
F
M
A
M
J
J
A
S
O
N
D

Miami

J
F
M
A
M
J
J
A
S
O
N
D

Month-by-month comparison

Month Rock Island Miami
High Low Precip High Low Precip
January 33.6°F 24.1°F 1.02 in 73.6°F 61.2°F 2.33 in
February 41.6°F 27.4°F 0.76 in 74.8°F 63.3°F 2.27 in
March 52.5°F 33.7°F 0.73 in 76.5°F 65.2°F 2.47 in
April 61.8°F 40.4°F 0.57 in 79.6°F 69.8°F 3.44 in
May 71.6°F 48.7°F 0.77 in 82.7°F 73.6°F 4.94 in
June 78.2°F 54.9°F 0.50 in 86.0°F 76.5°F 7.76 in
July 87.6°F 61.8°F 0.24 in 87.8°F 78.0°F 5.98 in
August 86.4°F 61.0°F 0.23 in 88.1°F 78.1°F 7.51 in
September 76.7°F 52.5°F 0.23 in 87.0°F 77.2°F 8.45 in
October 60.5°F 40.9°F 0.62 in 83.7°F 74.4°F 6.49 in
November 43.8°F 30.9°F 0.85 in 78.9°F 68.6°F 3.29 in
December 33.4°F 24.5°F 1.31 in 76.1°F 64.6°F 2.25 in
Rock Island overview
Full climate profile
 Miami overview
Full climate profile