Gilliam Missouri Climate Data

Monthly Average Climate Data for Gilliam Missouri

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-6.5 °C3.1 °C38.35 mm
February-4.4 °C6 °C48.77 mm
March0.9 °C12.4 °C71.12 mm
April6.7 °C18.4 °C108.71 mm
May12.6 °C23.7 °C135.13 mm
June17.8 °C28.6 °C130.3 mm
July19.9 °C30.8 °C115.32 mm
August18.6 °C30.1 °C99.06 mm
September13.8 °C26.3 °C98.55 mm
October7.6 °C19.7 °C84.33 mm
November1.4 °C12.1 °C65.28 mm
December-3.6 °C5.4 °C48.51 mm
Annual7.1 °C18.1 °C1043.43 mm

Climate Data for Gilliam Missouri

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateMay 1 - May 10
Average Days With Frost100-125 Days
Plant Hardiness Zone - 2023Zone 6b : -20.6°C to -17.8°C
Plant Hardiness Zone - 2012Zone 6a : -23.3°C to -20.6°C
Current Drought ConditionsSevere Drought
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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