Monticello Missouri Climate Data

Monthly Average Climate Data for Monticello Missouri

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January17.9 °F34.8 °F1.63 in.
February21.4 °F39.5 °F1.89 in.
March31.3 °F51.6 °F2.48 in.
April42.2 °F64.0 °F3.97 in.
May53.5 °F73.7 °F5.25 in.
June63.3 °F82.9 °F4.81 in.
July66.7 °F86.7 °F4.23 in.
August64.5 °F85.2 °F3.89 in.
September56.1 °F78.7 °F3.73 in.
October44.5 °F66.4 °F3.37 in.
November33.0 °F51.9 °F2.51 in.
December23.3 °F39.4 °F1.9 in.
Annual43.1 °F62.9 °F39.66 in.

Climate Data for Monticello Missouri

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateApr. 21 - Apr. 30
Average Days With Frost100-125 Days
Plant Hardiness Zone - 2023Zone 6a : -10°F to -5°F
Plant Hardiness Zone - 2012Zone 6a : -10°F to -5°F
Current Drought ConditionsNormal
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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