Foster Missouri Climate Data

Monthly Average Climate Data for Foster Missouri

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January21.0 °F41.1 °F1.57 in.
February24.7 °F46.2 °F1.94 in.
March34.0 °F56.7 °F2.9 in.
April43.9 °F66.9 °F4.58 in.
May54.7 °F75.8 °F6.12 in.
June64.4 °F84.6 °F5.55 in.
July68.6 °F89.5 °F4.47 in.
August66.3 °F88.5 °F3.84 in.
September57.4 °F81.1 °F4.38 in.
October45.5 °F69.7 °F3.47 in.
November34.4 °F56.1 °F2.74 in.
December25.2 °F44.8 °F2.07 in.
Annual45 °F66.8 °F43.63 in.

Climate Data for Foster Missouri

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateApr. 11 - Apr. 20
Average Days With Frost75-100 Days
Plant Hardiness Zone - 2023Zone 6b : -5°F to 0°F
Plant Hardiness Zone - 2012Zone 6a : -10°F to -5°F
Current Drought ConditionsModerate Drought
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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