South Beloit Illinois Climate Data

Monthly Average Climate Data for South Beloit Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January12.4 °F28.3 °F1.61 in.
February15.5 °F32.4 °F1.56 in.
March25.9 °F44.6 °F2.1 in.
April36.7 °F57.7 °F3.67 in.
May48.2 °F69.5 °F4.33 in.
June58.2 °F79.5 °F5.51 in.
July62.2 °F83.0 °F3.68 in.
August60.5 °F81.5 °F4.13 in.
September52.0 °F74.8 °F3.79 in.
October40.5 °F61.6 °F2.88 in.
November29.2 °F46.4 °F2.32 in.
December19.1 °F33.9 °F1.92 in.
Annual38.4 °F57.8 °F37.5 in.

Climate Data for South Beloit Illinois

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 1 - May 10
Average Days With Frost125-150 Days
Plant Hardiness Zone - 2023Zone 5b : -15°F to -10°F
Plant Hardiness Zone - 2012Zone 5b : -15°F to -10°F
Current Drought ConditionsModerate Drought
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
2024 plantmaps.com