Modesto California Climate Data

Monthly Average Climate Data for Modesto California

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January38.6 °F55.2 °F2.82 in.
February41.0 °F60.9 °F2.07 in.
March43.8 °F66.4 °F2.07 in.
April46.7 °F72.0 °F1.01 in.
May51.9 °F80.3 °F0.62 in.
June56.6 °F87.9 °F0.1 in.
July60.0 °F93.0 °F0.0 in.
August59.2 °F91.7 °F0.01 in.
September56.3 °F87.7 °F0.09 in.
October50.0 °F78.2 °F0.62 in.
November42.4 °F65.1 °F1.17 in.
December37.9 °F55.7 °F2.11 in.
Annual48.7 °F74.5 °F12.69 in.

Climate Data for Modesto California

Average First Frost DateDec. 11 - Dec. 20
Average Last Frost DateFeb. 11 - Feb. 20
Average Days With Frost10-20 Days
Plant Hardiness Zone - 2023Zone 9b : 25°F to 20°F
Plant Hardiness Zone - 2012Zone 9b : 25°F to 20°F
Current Drought ConditionsNormal
Köppen Climate ClassificationBSk - Cold Semi-Arid Climate