Belle Fourche, SD vs Seattle, WA

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

Belle Fourche is cooler than Seattle (47.9°F vs 53.8°F annual avg) and drier than it (18 in vs 36.5 in per year). Belle Fourche has a Semi-arid (cold) climate; Seattle a Warm-summer Mediterranean climate.

Belle Fourche, SD

Annual avg
47.9°F
Annual precip
18 in
Warmest month
July (87.3°F)
Coldest month
January (12.9°F)
Annual swing
48.8°F
Pleasant months
1 / 12
Semi-arid (cold) BSk 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

Belle Fourche

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 Belle Fourche Seattle
High Low Precip High Low Precip
January 36.5°F 12.9°F 0.44 in 48.6°F 36.8°F 5.21 in
February 39.1°F 15.1°F 0.51 in 50.7°F 36.8°F 3.71 in
March 49.7°F 23.9°F 1.16 in 54.8°F 39.4°F 3.94 in
April 59.0°F 32.8°F 2.11 in 59.8°F 43.6°F 2.89 in
May 68.5°F 43.5°F 3.04 in 66.5°F 49.3°F 1.98 in
June 79.3°F 53.7°F 2.96 in 71.2°F 54.0°F 1.22 in
July 87.3°F 59.7°F 1.96 in 77.3°F 57.5°F 0.56 in
August 86.6°F 56.8°F 1.50 in 77.4°F 58.1°F 0.83 in
September 77.8°F 46.5°F 1.34 in 71.7°F 53.9°F 1.37 in
October 62.2°F 35.0°F 1.72 in 61.0°F 46.4°F 3.49 in
November 47.5°F 23.6°F 0.66 in 53.0°F 39.9°F 5.80 in
December 37.1°F 14.9°F 0.59 in 47.8°F 36.2°F 5.49 in
Belle Fourche overview
Full climate profile
 Seattle overview
Full climate profile