Naples Illinois Climate Data

Monthly Average Climate Data for Naples Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January19.0 °F36.0 °F2.14 in.
February22.4 °F41.1 °F1.91 in.
March31.5 °F52.5 °F2.73 in.
April42.0 °F65.1 °F4.01 in.
May53.0 °F74.9 °F4.66 in.
June62.2 °F83.6 °F4.82 in.
July66.0 °F87.1 °F4.15 in.
August63.4 °F85.9 °F3.47 in.
September55.3 °F79.9 °F3.46 in.
October43.7 °F67.6 °F3.05 in.
November32.9 °F53.2 °F2.92 in.
December24.3 °F40.9 °F2.29 in.
Annual43 °F64 °F39.61 in.

Climate Data for Naples Illinois

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateApr. 11 - Apr. 20
Average Days With Frost100-125 Days
Plant Hardiness Zone - 2023Zone 6a : -10°F to -5°F
Plant Hardiness Zone - 2012Zone 6a : -10°F to -5°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
2024 plantmaps.com