Boonville California Climate Data

Monthly Average Climate Data for Boonville California

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January39.2 °F57.4 °F8.37 in.
February40.1 °F59.4 °F6.63 in.
March41.8 °F62.7 °F5.65 in.
April43.8 °F67.9 °F3.21 in.
May47.6 °F74.5 °F1.47 in.
June51.4 °F81.4 °F0.3 in.
July53.4 °F88.1 °F0.03 in.
August53.2 °F88.0 °F0.06 in.
September51.2 °F86.1 °F0.14 in.
October47.0 °F77.6 °F1.74 in.
November42.0 °F63.4 °F4.29 in.
December38.6 °F57.1 °F9.43 in.
Annual45.8 °F72 °F41.32 in.

Climate Data for Boonville California

Average First Frost DateDec. 1 - Dec. 10
Average Last Frost DateMar. 21 - Mar. 31
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 ClassificationCsb - Warm-Summer Mediterranean Climate
2024 plantmaps.com