Hartford, South Dakota Climate

United States

Pop. 3,025 Elev. 481 m / 1,578 ft TZ: America/Chicago (UTC-5) ·

Winters in Hartford are severe, with temperatures dropping to 8°F (-13°C) in February, while summers bring mild highs of 84°F (29°C) in July. Humidity pushes the summer feels-like temperature to 92°F (33°C), while wind chill can drive winter lows to 0°F (-18°C). Expect around 39 rainy days annually (26.2 in / 666 mm total), with snow on 4 days and 26 in (663 mm) of annual accumulation. The city averages 143 sunny days per year and around 30 thunderstorm days. Nearby lake water reaches 75°F (24°C) in summer.

Temperature 84°F (29°C) high 8°F (-13°C) low
Feels like 92°F (33°C) high 0°F (-18°C) low
Rain 39 days 26.2 in (666 mm) /yr
Snow 4 days 26.1 in (663 mm) /yr
Sky 143 sunny 30 stormy
Wind 2.9 mph (1.3 m/s) avg

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Monthly Climate Chart

↓ Monthly data table
Best months to visit: Apr, May, Sep, Oct

Sky & Air by Month

Cloud cover (%)
45
Jan
53
Feb
53
Mar
53
Apr
46
May
52
Jun
50
Jul
45
Aug
43
Sep
42
Oct
59
Nov
72
Dec
Humidity (%)
62
Jan
65
Feb
58
Mar
55
Apr
51
May
63
Jun
77
Jul
77
Aug
68
Sep
62
Oct
70
Nov
79
Dec

Weather Days by Month

↓ Weather days table

Water Temperatures

↓ Water temperatures table

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Nearby Cities

Nearby

Commercial airport 10 mi Sioux Falls Regional Airport (FSD)
Ski resort 14 mi Great Bear Recreation Park
National park 41 mi Pipestone National Monument
Mountain peak (20,733 ft) 261 mi Norris Hill
Hospital 1 mi Sanford Clinic-Hartford
Hiking trail 78 mi Lake Loop

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Monthly Weather Data

↑ See chart
Month Avg High Avg Low Rainfall Snowfall Sunny Days
January 31°F -1°C 11°F -12°C 0.0 in 0 mm 1.4 in35 mm 15
February 29°F -2°C 8°F -13°C 0.0 in 1 mm 2.9 in72 mm 9
March 57°F 14°C 30°F -1°C 2.4 in 62 mm 5.6 in143 mm 13
April 62°F 17°C 38°F 4°C 2.2 in 56 mm 0.9 in24 mm 12
May 73°F 23°C 49°F 10°C 2.6 in 65 mm 14
June 84°F 29°C 62°F 17°C 6.5 in 165 mm 11
July 84°F 29°C 66°F 19°C 5.0 in 126 mm 11
August 80°F 27°C 63°F 17°C 3.8 in 97 mm 11
September 79°F 26°C 56°F 14°C 1.7 in 42 mm 17
October 67°F 19°C 47°F 8°C 1.3 in 33 mm 18
November 47°F 8°C 31°F -1°C 0.5 in 14 mm 6.7 in169 mm 8
December 34°F 1°C 15°F -10°C 0.2 in 5 mm 8.7 in220 mm 4

Weather Days by Month

↑ See chart
Month Sunny Days Storm Days
January 15 0
February 9 0
March 13 2
April 12 2
May 14 3
June 11 8
July 11 8
August 11 5
September 17 1
October 18 1
November 8 0
December 4 0

Water Temperatures Data

↑ See chart
Month Lake Avg High
January 32°F 0°C
February 32°F 0°C
March 33°F 0°C
April 38°F 3°C
May 46°F 8°C
June 60°F 16°C
July 75°F 24°C
August 75°F 24°C
September 68°F 20°C
October 58°F 14°C
November 46°F 8°C
December 38°F 3°C