Shasta Lake, CA vs Seattle, WA

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

Shasta Lake is warmer than Seattle (63.5°F vs 53.8°F annual avg) and wetter than it (63 in vs 36.5 in per year). Shasta Lake has a Hot-summer Mediterranean climate; Seattle a Warm-summer Mediterranean climate.

Shasta Lake, CA

Annual avg
63.5°F
Annual precip
63 in
Warmest month
July (97.0°F)
Coldest month
January (40.5°F)
Annual swing
35.6°F
Pleasant months
2 / 12
Hot-summer Mediterranean Csa USDA Zone 9b

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

Shasta Lake

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 Shasta Lake Seattle
High Low Precip High Low Precip
January 55.0°F 40.5°F 10.51 in 48.6°F 36.8°F 5.21 in
February 58.7°F 41.7°F 11.41 in 50.7°F 36.8°F 3.71 in
March 63.4°F 43.9°F 9.24 in 54.8°F 39.4°F 3.94 in
April 69.6°F 47.6°F 4.61 in 59.8°F 43.6°F 2.89 in
May 78.9°F 55.4°F 2.93 in 66.5°F 49.3°F 1.98 in
June 88.2°F 63.0°F 1.51 in 71.2°F 54.0°F 1.22 in
July 97.0°F 69.0°F 0.14 in 77.3°F 57.5°F 0.56 in
August 96.0°F 67.7°F 0.16 in 77.4°F 58.1°F 0.83 in
September 90.3°F 63.0°F 0.52 in 71.7°F 53.9°F 1.37 in
October 77.6°F 54.8°F 3.43 in 61.0°F 46.4°F 3.49 in
November 62.4°F 46.0°F 6.59 in 53.0°F 39.9°F 5.80 in
December 54.2°F 40.6°F 11.99 in 47.8°F 36.2°F 5.49 in
Shasta Lake overview
Full climate profile
 Seattle overview
Full climate profile