Hartsville, SC vs Seattle, WA

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

Hartsville is warmer than Seattle (62.4°F vs 53.8°F annual avg) and wetter than it (48.5 in vs 36.5 in per year). Hartsville has a Humid subtropical climate; Seattle a Warm-summer Mediterranean climate.

Hartsville, SC

Annual avg
62.4°F
Annual precip
48.5 in
Warmest month
July (91.9°F)
Coldest month
January (31.9°F)
Annual swing
37.7°F
Pleasant months
1 / 12
Humid subtropical Cfa USDA Zone 8b

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

Hartsville

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 Hartsville Seattle
High Low Precip High Low Precip
January 54.9°F 31.9°F 3.73 in 48.6°F 36.8°F 5.21 in
February 58.8°F 34.1°F 3.35 in 50.7°F 36.8°F 3.71 in
March 66.4°F 40.0°F 3.76 in 54.8°F 39.4°F 3.94 in
April 75.7°F 48.1°F 2.98 in 59.8°F 43.6°F 2.89 in
May 82.4°F 57.7°F 3.90 in 66.5°F 49.3°F 1.98 in
June 88.7°F 66.5°F 4.64 in 71.2°F 54.0°F 1.22 in
July 91.9°F 70.3°F 5.91 in 77.3°F 57.5°F 0.56 in
August 90.2°F 68.9°F 5.20 in 77.4°F 58.1°F 0.83 in
September 84.8°F 63.1°F 4.92 in 71.7°F 53.9°F 1.37 in
October 75.6°F 50.6°F 3.41 in 61.0°F 46.4°F 3.49 in
November 65.3°F 39.8°F 2.91 in 53.0°F 39.9°F 5.80 in
December 57.6°F 34.6°F 3.81 in 47.8°F 36.2°F 5.49 in
Hartsville overview
Full climate profile
 Seattle overview
Full climate profile