Byrnes Mill Missouri Climate Data

Monthly Average Climate Data for Byrnes Mill Missouri

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-5.3 °C4.6 °C70.36 mm
February-3.3 °C7.7 °C61.47 mm
March1.6 °C13.3 °C94.23 mm
April7.5 °C20 °C121.67 mm
May13.3 °C24.9 °C131.83 mm
June18.3 °C29.6 °C113.03 mm
July20.6 °C31.7 °C101.85 mm
August19.4 °C30.9 °C92.46 mm
September14.7 °C27.3 °C87.88 mm
October8.1 °C20.8 °C83.82 mm
November2.1 °C13.3 °C89.92 mm
December-2.8 °C7.1 °C69.34 mm
Annual7.9 °C19.3 °C1117.86 mm

Climate Data for Byrnes Mill Missouri

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateApr. 21 - Apr. 30
Average Days With Frost75-100 Days
Plant Hardiness Zone - 2023Zone 6b : -20.6°C to -17.8°C
Plant Hardiness Zone - 2012Zone 6b : -20.6°C to -17.8°C
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationCfa - Humid Subtropical Climate
2024 plantmaps.com