Rio Oso California Climate Data

Monthly Average Climate Data for Rio Oso California

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January38.5 °F55.4 °F3.95 in.
February40.7 °F60.8 °F3.45 in.
March43.4 °F65.9 °F2.89 in.
April46.0 °F71.5 °F1.41 in.
May51.9 °F79.7 °F0.85 in.
June57.2 °F87.6 °F0.18 in.
July60.2 °F93.2 °F0.0 in.
August59.0 °F92.3 °F0.05 in.
September55.9 °F87.9 °F0.13 in.
October49.2 °F78.2 °F0.85 in.
November41.6 °F64.6 °F2.05 in.
December37.8 °F55.6 °F3.73 in.
Annual48.5 °F74.4 °F19.54 in.

Climate Data for Rio Oso California

Average First Frost DateNov. 21 - Nov. 30
Average Last Frost DateFeb. 21 - Feb. 29
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 ClassificationCsa - Hot-Summer Mediterranean Climate
2024 plantmaps.com