Fountain Valley, CA vs Seattle, WA

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

Fountain Valley is warmer than Seattle (64.9°F vs 53.8°F annual avg) and drier than it (11.2 in vs 36.5 in per year). Fountain Valley has a Semi-arid (hot) climate; Seattle a Warm-summer Mediterranean climate.

Fountain Valley, CA

Annual avg
64.9°F
Annual precip
11.2 in
Warmest month
August (80.4°F)
Coldest month
December (48.3°F)
Annual swing
16.4°F
Pleasant months
9 / 12
Semi-arid (hot) BSh USDA Zone 10a

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

Fountain Valley

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 Fountain Valley Seattle
High Low Precip High Low Precip
January 67.0°F 48.6°F 2.59 in 48.6°F 36.8°F 5.21 in
February 66.7°F 50.1°F 2.64 in 50.7°F 36.8°F 3.71 in
March 67.7°F 52.3°F 1.62 in 54.8°F 39.4°F 3.94 in
April 70.2°F 54.9°F 0.52 in 59.8°F 43.6°F 2.89 in
May 71.3°F 59.3°F 0.27 in 66.5°F 49.3°F 1.98 in
June 74.1°F 62.6°F 0.01 in 71.2°F 54.0°F 1.22 in
July 78.9°F 66.2°F 0.04 in 77.3°F 57.5°F 0.56 in
August 80.4°F 67.1°F 0.01 in 77.4°F 58.1°F 0.83 in
September 79.9°F 65.0°F 0.10 in 71.7°F 53.9°F 1.37 in
October 76.5°F 59.2°F 0.54 in 61.0°F 46.4°F 3.49 in
November 71.9°F 53.3°F 0.80 in 53.0°F 39.9°F 5.80 in
December 66.5°F 48.3°F 2.04 in 47.8°F 36.2°F 5.49 in
Fountain Valley overview
Full climate profile
 Seattle overview
Full climate profile