Jonesboro Illinois Climate Data

Monthly Average Climate Data for Jonesboro Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January24.6 °F42.0 °F3.69 in.
February27.9 °F47.1 °F3.29 in.
March36.2 °F56.9 °F4.73 in.
April46.1 °F68.2 °F5.45 in.
May56.2 °F76.8 °F5.7 in.
June64.7 °F85.4 °F4.7 in.
July68.5 °F88.1 °F3.93 in.
August66.0 °F87.5 °F3.11 in.
September58.0 °F81.7 °F3.47 in.
October46.5 °F70.7 °F3.77 in.
November36.5 °F56.9 °F4.64 in.
December28.4 °F45.6 °F4.03 in.
Annual46.6 °F67.2 °F50.51 in.

Climate Data for Jonesboro 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 ClassificationCfa - Humid Subtropical Climate
2024 plantmaps.com