Roberts Illinois Climate Data

Monthly Average Climate Data for Roberts Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January16.7 °F32.9 °F2.2 in.
February19.6 °F37.4 °F1.83 in.
March29.1 °F49.0 °F2.57 in.
April39.6 °F62.5 °F3.75 in.
May51.5 °F73.5 °F4.39 in.
June60.8 °F82.1 °F4.44 in.
July63.6 °F84.6 °F4.12 in.
August61.2 °F83.1 °F3.55 in.
September53.3 °F78.7 °F2.99 in.
October41.9 °F65.9 °F3.29 in.
November31.5 °F50.5 °F2.69 in.
December21.8 °F37.6 °F2.08 in.
Annual40.9 °F61.5 °F37.9 in.

Climate Data for Roberts 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 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