Triumph Illinois Climate Data

Monthly Average Climate Data for Triumph Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January14.3 °F30.5 °F1.79 in.
February18.1 °F35.1 °F1.74 in.
March27.7 °F47.5 °F2.37 in.
April38.2 °F61.0 °F3.6 in.
May49.9 °F72.3 °F4.63 in.
June59.7 °F81.2 °F4.68 in.
July63.1 °F84.0 °F4.12 in.
August61.0 °F82.2 °F3.89 in.
September52.9 °F76.7 °F3.46 in.
October41.3 °F64.0 °F3.07 in.
November30.5 °F48.7 °F2.5 in.
December20.3 °F35.9 °F1.99 in.
Annual39.8 °F59.9 °F37.84 in.

Climate Data for Triumph Illinois

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 11 - May 20
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 ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
2024 plantmaps.com