Blue Grass, IA vs Seattle, WA

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

Blue Grass is cooler than Seattle (50.3°F vs 53.8°F annual avg) and similar rainfall to it (38.8 in vs 36.5 in per year). Blue Grass has a Hot-summer humid continental climate; Seattle a Warm-summer Mediterranean climate.

Blue Grass, IA

Annual avg
50.3°F
Annual precip
38.8 in
Warmest month
July (83.9°F)
Coldest month
January (13.4°F)
Annual swing
52.2°F
Pleasant months
2 / 12
Hot-summer humid continental Dfa USDA Zone 6b

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

Blue Grass

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 Blue Grass Seattle
High Low Precip High Low Precip
January 31.0°F 13.4°F 1.49 in 48.6°F 36.8°F 5.21 in
February 36.3°F 17.9°F 1.78 in 50.7°F 36.8°F 3.71 in
March 48.4°F 28.0°F 2.62 in 54.8°F 39.4°F 3.94 in
April 61.4°F 39.3°F 3.81 in 59.8°F 43.6°F 2.89 in
May 72.3°F 50.8°F 5.12 in 66.5°F 49.3°F 1.98 in
June 81.2°F 61.0°F 5.22 in 71.2°F 54.0°F 1.22 in
July 83.9°F 64.9°F 4.22 in 77.3°F 57.5°F 0.56 in
August 82.4°F 63.1°F 4.03 in 77.4°F 58.1°F 0.83 in
September 76.7°F 55.0°F 3.31 in 71.7°F 53.9°F 1.37 in
October 63.7°F 42.9°F 2.89 in 61.0°F 46.4°F 3.49 in
November 48.7°F 30.2°F 2.30 in 53.0°F 39.9°F 5.80 in
December 36.0°F 19.7°F 2.02 in 47.8°F 36.2°F 5.49 in
Blue Grass overview
Full climate profile
 Seattle overview
Full climate profile