Newcastle California Climate Data

Monthly Average Climate Data for Newcastle California

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January38.6 °F55.2 °F4.89 in.
February40.2 °F59.3 °F4.58 in.
March42.9 °F63.7 °F4.05 in.
April45.1 °F68.5 °F2.3 in.
May50.8 °F77.3 °F1.46 in.
June56.8 °F86.5 °F0.38 in.
July61.6 °F93.7 °F0.0 in.
August61.2 °F92.5 °F0.03 in.
September57.4 °F87.3 °F0.2 in.
October50.6 °F76.8 °F1.41 in.
November43.1 °F63.5 °F2.83 in.
December37.9 °F54.9 °F4.88 in.
Annual48.9 °F73.3 °F27.01 in.

Climate Data for Newcastle California

Average First Frost DateDec. 1 - Dec. 10
Average Last Frost DateFeb. 21 - Feb. 29
Average Days With Frost20-30 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
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