Sparta, WI

Climate overview — based on NOAA 1991-2020 normals from SPARTA, WI US.

Dfb Warm-summer humid continental climate 6a USDA hardiness Zone 6a

Year-round temperatures (°F)

20° 40° 60° 80° J F M A M J J A S O N D
Avg high Avg low

Climate summary

Sparta has an annual average temperature of 44.6°F with about 35.6 inches of precipitation per year. The warmest month is July (average high 82.2°F), and the coldest is January (average low 5.6°F). June is typically the wettest month (5.31 in) and February the driest (1.10 in).

Pleasant months
1 / 12
avg high 65–80°F, low ≥ 50°F
Annual swing
55.8°F
warmest to coldest month
Heating need
7,680
Cooling need
336

Best time to visit Sparta

Full guide →

Climate change signal

All-time records →

38 of 366 (10.4%) of Sparta's all-time daily heat records have been set since 2015. If records were spread evenly across the station's history, only about 5% would fall in any given decade.

1890s
1
1910s
2
1930s
48
1940s
50
1950s
32
1960s
25
1970s
20
1980s
36
1990s
39
2000s
43
2010s
46
2020s
24

Bars: number of all-time daily heat records still standing that were set in each decade.

Monthly averages

Month Avg High Avg Low Avg Temp Precipitation Snow Rainy days
January 24.5°F 5.6°F 15.0°F 1.14 in 7
February 29.5°F 9.3°F 19.4°F 1.10 in 6
March 41.8°F 21.1°F 31.5°F 1.77 in 8
April 55.7°F 32.7°F 44.2°F 3.66 in 11
May 68.4°F 44.9°F 56.6°F 4.64 in 13
June 78.2°F 55.5°F 66.9°F 5.31 in 12
July 82.2°F 59.3°F 70.8°F 4.07 in 10
August 80.1°F 56.9°F 68.5°F 4.30 in 10
September 72.3°F 48.1°F 60.2°F 3.73 in 10
October 58.5°F 35.5°F 47.0°F 2.58 in 10
November 42.8°F 24.4°F 33.6°F 2.00 in 7
December 30.0°F 13.0°F 21.5°F 1.29 in 8

Climate twins of Sparta

Why these? →

The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).

Frost dates
Last spring / first fall frost
All-time records
Hottest, coldest, wettest
Planting calendar
What to plant, and when

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