Rocklake, ND vs Seattle, WA

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

Rocklake is cooler than Seattle (38.5°F vs 53.8°F annual avg) and drier than it (19 in vs 36.5 in per year). Rocklake has a Warm-summer humid continental climate; Seattle a Warm-summer Mediterranean climate.

Rocklake, ND

Annual avg
38.5°F
Annual precip
19 in
Warmest month
July (80.5°F)
Coldest month
January (-5.3°F)
Annual swing
61.8°F
Pleasant months
2 / 12
Warm-summer humid continental Dfb USDA Zone 4b

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

Rocklake

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 Rocklake Seattle
High Low Precip High Low Precip
January 17.0°F -5.3°F 0.47 in 48.6°F 36.8°F 5.21 in
February 21.4°F -2.4°F 0.45 in 50.7°F 36.8°F 3.71 in
March 33.5°F 11.8°F 0.92 in 54.8°F 39.4°F 3.94 in
April 51.6°F 27.1°F 0.98 in 59.8°F 43.6°F 2.89 in
May 65.2°F 39.6°F 2.68 in 66.5°F 49.3°F 1.98 in
June 74.8°F 51.3°F 3.71 in 71.2°F 54.0°F 1.22 in
July 80.5°F 54.8°F 2.37 in 77.3°F 57.5°F 0.56 in
August 80.0°F 52.2°F 2.91 in 77.4°F 58.1°F 0.83 in
September 71.4°F 42.9°F 1.76 in 71.7°F 53.9°F 1.37 in
October 54.3°F 30.1°F 1.16 in 61.0°F 46.4°F 3.49 in
November 35.2°F 14.2°F 0.77 in 53.0°F 39.9°F 5.80 in
December 22.1°F 1.9°F 0.79 in 47.8°F 36.2°F 5.49 in
Rocklake overview
Full climate profile
 Seattle overview
Full climate profile