Jamaica Iowa Climate Data

Monthly Average Climate Data for Jamaica Iowa

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January10.8 °F28.8 °F0.89 in.
February14.7 °F33.4 °F1.21 in.
March26.2 °F46.7 °F2.19 in.
April37.3 °F60.8 °F3.79 in.
May49.7 °F71.5 °F4.81 in.
June60.1 °F81.0 °F5.43 in.
July63.7 °F84.6 °F4.05 in.
August60.9 °F82.3 °F4.11 in.
September52.0 °F76.8 °F3.34 in.
October39.7 °F63.7 °F2.78 in.
November27.3 °F47.5 °F1.71 in.
December16.8 °F34.1 °F1.35 in.
Annual38.3 °F59.3 °F35.66 in.

Climate Data for Jamaica Iowa

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateMay 11 - May 20
Average Days With Frost125-150 Days
Plant Hardiness Zone - 2023Zone 5a : -20°F to -15°F
Plant Hardiness Zone - 2012Zone 5a : -20°F to -15°F
Current Drought ConditionsNormal
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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