Carthage Illinois Climate Data

Monthly Average Climate Data for Carthage Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January16.4 °F33.3 °F1.78 in.
February20.0 °F38.1 °F1.96 in.
March30.2 °F50.5 °F2.53 in.
April41.1 °F63.4 °F4.06 in.
May52.7 °F73.6 °F5.34 in.
June62.5 °F82.8 °F4.92 in.
July65.9 °F86.4 °F4.15 in.
August63.7 °F84.7 °F3.9 in.
September55.2 °F78.8 °F3.74 in.
October43.5 °F65.9 °F3.23 in.
November32.0 °F51.0 °F2.67 in.
December22.1 °F38.4 °F1.96 in.
Annual42.1 °F62.2 °F40.24 in.

Climate Data for Carthage Illinois

Average First Frost DateOct. 21 - Oct. 31
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 ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
2024 plantmaps.com