Langley, WA vs Seattle, WA

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

Langley is cooler than Seattle (51.4°F vs 53.8°F annual avg) and similar rainfall to it (33.4 in vs 36.5 in per year). Both cities share a Warm-summer Mediterranean climate (Csb).

Langley, WA

Annual avg
51.4°F
Annual precip
33.4 in
Warmest month
August (73.0°F)
Coldest month
December (36.0°F)
Annual swing
23.9°F
Pleasant months
4 / 12
Warm-summer Mediterranean Csb USDA Zone 9a

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

Langley

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 Langley Seattle
High Low Precip High Low Precip
January 45.8°F 36.6°F 3.89 in 48.6°F 36.8°F 5.21 in
February 47.9°F 36.9°F 2.84 in 50.7°F 36.8°F 3.71 in
March 51.6°F 39.0°F 3.63 in 54.8°F 39.4°F 3.94 in
April 56.1°F 42.6°F 2.67 in 59.8°F 43.6°F 2.89 in
May 62.5°F 47.6°F 2.11 in 66.5°F 49.3°F 1.98 in
June 66.4°F 51.4°F 1.89 in 71.2°F 54.0°F 1.22 in
July 72.3°F 54.7°F 0.84 in 77.3°F 57.5°F 0.56 in
August 73.0°F 55.4°F 0.98 in 77.4°F 58.1°F 0.83 in
September 67.7°F 52.3°F 1.68 in 71.7°F 53.9°F 1.37 in
October 57.7°F 46.0°F 3.35 in 61.0°F 46.4°F 3.49 in
November 49.7°F 39.9°F 4.97 in 53.0°F 39.9°F 5.80 in
December 44.6°F 36.0°F 4.52 in 47.8°F 36.2°F 5.49 in
Langley overview
Full climate profile
 Seattle overview
Full climate profile