Rockville, IN vs Seattle, WA

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

Rockville is about the same temperature as Seattle (52°F vs 53.8°F annual avg) and wetter than it (47.4 in vs 36.5 in per year). Rockville has a Hot-summer humid continental climate; Seattle a Warm-summer Mediterranean climate.

Rockville, IN

Annual avg
52°F
Annual precip
47.4 in
Warmest month
July (85.8°F)
Coldest month
January (17.2°F)
Annual swing
47.4°F
Pleasant months
1 / 12
Hot-summer humid continental Dfa USDA Zone 7a

Seattle, WA

Annual avg
53.8°F
Annual precip
36.5 in
Warmest month
August (77.4°F)
Coldest month
December (36.2°F)
Annual swing
25.8°F
Pleasant months
4 / 12
Warm-summer Mediterranean Csb USDA Zone 9a

Best months to visit each city

Rockville

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

Seattle

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

Month-by-month comparison

Month Rockville Seattle
High Low Precip High Low Precip
January 35.7°F 17.2°F 3.38 in 48.6°F 36.8°F 5.21 in
February 41.1°F 20.6°F 2.60 in 50.7°F 36.8°F 3.71 in
March 52.3°F 29.3°F 3.32 in 54.8°F 39.4°F 3.94 in
April 65.8°F 39.7°F 4.96 in 59.8°F 43.6°F 2.89 in
May 75.6°F 49.7°F 5.02 in 66.5°F 49.3°F 1.98 in
June 83.5°F 58.4°F 5.45 in 71.2°F 54.0°F 1.22 in
July 85.8°F 62.0°F 4.70 in 77.3°F 57.5°F 0.56 in
August 84.6°F 60.0°F 3.84 in 77.4°F 58.1°F 0.83 in
September 79.2°F 52.7°F 3.14 in 71.7°F 53.9°F 1.37 in
October 66.9°F 41.6°F 3.87 in 61.0°F 46.4°F 3.49 in
November 52.1°F 31.4°F 3.90 in 53.0°F 39.9°F 5.80 in
December 39.8°F 22.2°F 3.25 in 47.8°F 36.2°F 5.49 in
Rockville overview
Full climate profile
 Seattle overview
Full climate profile