Callao Missouri Climate Data

Monthly Average Climate Data for Callao Missouri

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January17.2 °F35.5 °F1.6 in.
February20.9 °F40.9 °F1.95 in.
March31.0 °F52.5 °F2.67 in.
April41.7 °F64.2 °F4.28 in.
May52.7 °F73.9 °F5.5 in.
June62.2 °F82.8 °F5.56 in.
July66.3 °F87.3 °F4.51 in.
August63.9 °F86.3 °F3.91 in.
September55.0 °F78.9 °F4.03 in.
October43.6 °F66.8 °F3.32 in.
November32.3 °F52.6 °F2.52 in.
December22.4 °F40.0 °F1.81 in.
Annual42.4 °F63.5 °F41.66 in.

Climate Data for Callao 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 6a : -10°F to -5°F
Plant Hardiness Zone - 2012Zone 5b : -15°F to -10°F
Current Drought ConditionsNormal
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation