Sparta Illinois Climate Data

Monthly Average Climate Data for Sparta Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January23.1 °F40.2 °F2.78 in.
February26.6 °F45.4 °F2.54 in.
March34.8 °F55.6 °F3.69 in.
April45.1 °F67.1 °F5.03 in.
May55.7 °F76.1 °F5.32 in.
June64.5 °F85.0 °F4.52 in.
July68.1 °F88.1 °F4.35 in.
August65.8 °F87.0 °F3.23 in.
September57.5 °F80.7 °F3.24 in.
October46.2 °F69.8 °F3.36 in.
November35.8 °F55.5 °F4.06 in.
December27.4 °F44.3 °F3.06 in.
Annual45.9 °F66.2 °F45.18 in.

Climate Data for Sparta Illinois

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateApr. 11 - Apr. 20
Average Days With Frost75-100 Days
Plant Hardiness Zone - 2023Zone 7a : 0°F to 5°F
Plant Hardiness Zone - 2012Zone 6b : -5°F to 0°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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