Portal, ND vs Seattle, WA

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

Portal is cooler than Seattle (37.9°F vs 53.8°F annual avg) and drier than it (15.7 in vs 36.5 in per year). Portal has a Warm-summer humid continental climate; Seattle a Warm-summer Mediterranean climate.

Portal, ND

Annual avg
37.9°F
Annual precip
15.7 in
Warmest month
August (78.3°F)
Coldest month
January (-2.0°F)
Annual swing
57.4°F
Pleasant months
2 / 12
Warm-summer humid continental Dfb USDA Zone 5a

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

Portal

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 Portal Seattle
High Low Precip High Low Precip
January 18.1°F -2.0°F 0.40 in 48.6°F 36.8°F 5.21 in
February 20.9°F 1.3°F 0.37 in 50.7°F 36.8°F 3.71 in
March 33.2°F 13.6°F 0.63 in 54.8°F 39.4°F 3.94 in
April 51.7°F 26.5°F 0.91 in 59.8°F 43.6°F 2.89 in
May 64.9°F 38.3°F 2.27 in 66.5°F 49.3°F 1.98 in
June 72.7°F 49.1°F 3.70 in 71.2°F 54.0°F 1.22 in
July 78.1°F 52.7°F 2.51 in 77.3°F 57.5°F 0.56 in
August 78.3°F 50.2°F 1.37 in 77.4°F 58.1°F 0.83 in
September 68.5°F 41.0°F 1.49 in 71.7°F 53.9°F 1.37 in
October 52.3°F 28.0°F 1.04 in 61.0°F 46.4°F 3.49 in
November 34.1°F 14.6°F 0.54 in 53.0°F 39.9°F 5.80 in
December 21.3°F 3.0°F 0.46 in 47.8°F 36.2°F 5.49 in
Portal overview
Full climate profile
 Seattle overview
Full climate profile