Holtsville New York Climate Data

Monthly Average Climate Data for Holtsville New York

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January24.2 °F39.6 °F3.92 in.
February25.3 °F41.3 °F3.61 in.
March31.6 °F48.0 °F5.11 in.
April40.8 °F58.6 °F4.32 in.
May50.6 °F68.5 °F3.94 in.
June60.5 °F77.5 °F4.37 in.
July66.5 °F83.1 °F3.36 in.
August65.3 °F81.4 °F4.14 in.
September58.6 °F75.2 °F4.01 in.
October47.7 °F64.3 °F4.87 in.
November37.5 °F53.6 °F3.86 in.
December29.9 °F45.0 °F5.01 in.
Annual44.9 °F61.3 °F50.52 in.

Climate Data for Holtsville New York

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateMay 1 - May 10
Average Days With Frost75-100 Days
Plant Hardiness Zone - 2023Zone 7b : 5°F to 10°F
Plant Hardiness Zone - 2012Zone 7a : 0°F to 5°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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