West Islip New York Climate Data

Monthly Average Climate Data for West Islip New York

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January25.6 °F39.5 °F3.82 in.
February26.6 °F41.5 °F3.25 in.
March32.7 °F47.9 °F4.62 in.
April41.9 °F59.0 °F4.19 in.
May51.3 °F68.7 °F3.48 in.
June61.3 °F77.8 °F3.97 in.
July67.4 °F83.3 °F3.27 in.
August66.5 °F82.4 °F4.09 in.
September59.8 °F75.4 °F3.8 in.
October48.9 °F64.2 °F4.68 in.
November39.1 °F54.0 °F3.54 in.
December31.5 °F44.8 °F4.6 in.
Annual46.1 °F61.5 °F47.31 in.

Climate Data for West Islip New York

Average First Frost DateNov. 1 - Nov. 10
Average Last Frost DateApr. 21 - Apr. 30
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 ConditionsNormal
Köppen Climate ClassificationCfa - Humid Subtropical Climate
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