Central Islip New York Climate Data

Monthly Average Climate Data for Central Islip New York

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January24.5 °F39.5 °F3.98 in.
February25.5 °F41.4 °F3.58 in.
March31.8 °F48.2 °F5.09 in.
April41.0 °F59.3 °F4.4 in.
May50.7 °F69.2 °F3.91 in.
June60.6 °F77.9 °F4.38 in.
July66.8 °F83.3 °F3.41 in.
August65.7 °F81.6 °F4.18 in.
September58.9 °F75.0 °F4.02 in.
October47.8 °F63.9 °F5.01 in.
November37.7 °F53.7 °F3.8 in.
December30.3 °F44.9 °F5.11 in.
Annual45.1 °F61.5 °F50.87 in.

Climate Data for Central Islip New York

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateApr. 11 - Apr. 20
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 ConditionsModerate Drought
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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