Joliet, MT vs Seattle, WA

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

Joliet is cooler than Seattle (43.7°F vs 53.8°F annual avg) and drier than it (14.5 in vs 36.5 in per year). Joliet has a Warm-summer humid continental climate; Seattle a Warm-summer Mediterranean climate.

Joliet, MT

Annual avg
43.7°F
Annual precip
14.5 in
Warmest month
July (85.7°F)
Coldest month
January (9.8°F)
Annual swing
44.9°F
Warm-summer humid continental Dfb USDA Zone 6a

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

Joliet

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 Joliet Seattle
High Low Precip High Low Precip
January 35.9°F 9.8°F 0.53 in 48.6°F 36.8°F 5.21 in
February 38.6°F 12.0°F 0.57 in 50.7°F 36.8°F 3.71 in
March 49.0°F 19.1°F 0.84 in 54.8°F 39.4°F 3.94 in
April 56.5°F 26.6°F 1.89 in 59.8°F 43.6°F 2.89 in
May 65.7°F 36.3°F 2.67 in 66.5°F 49.3°F 1.98 in
June 75.8°F 44.3°F 2.11 in 71.2°F 54.0°F 1.22 in
July 85.7°F 49.9°F 0.94 in 77.3°F 57.5°F 0.56 in
August 84.3°F 47.9°F 0.88 in 77.4°F 58.1°F 0.83 in
September 73.7°F 39.3°F 1.26 in 71.7°F 53.9°F 1.37 in
October 58.8°F 28.6°F 1.57 in 61.0°F 46.4°F 3.49 in
November 45.3°F 18.9°F 0.70 in 53.0°F 39.9°F 5.80 in
December 35.8°F 11.1°F 0.58 in 47.8°F 36.2°F 5.49 in
Joliet overview
Full climate profile
 Seattle overview
Full climate profile