Sidell Illinois Climate Data

Monthly Average Climate Data for Sidell Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January18.0 °F33.9 °F2.47 in.
February21.1 °F38.4 °F2.06 in.
March30.5 °F50.2 °F2.87 in.
April41.0 °F63.3 °F4.26 in.
May52.6 °F74.0 °F4.54 in.
June61.9 °F82.4 °F4.7 in.
July64.3 °F84.6 °F4.29 in.
August61.8 °F83.3 °F2.99 in.
September54.5 °F78.7 °F3.02 in.
October42.9 °F66.1 °F3.38 in.
November32.4 °F51.1 °F3.36 in.
December23.8 °F38.8 °F2.51 in.
Annual42.1 °F62.1 °F40.45 in.

Climate Data for Sidell Illinois

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateApr. 21 - Apr. 30
Average Days With Frost100-125 Days
Plant Hardiness Zone - 2023Zone 6a : -10°F to -5°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