Climate almanac

West Islip

New York, US · 40.71°, -73.31°

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What is the climate like in West Islip?

West Islip is warmest in July, when daily highs average 79°F (26°C), and coolest in January, when lows fall to about 32°F (0°C). The wettest month is typically December and the driest is June; the year sees roughly 50 in of precipitation.

  • Warmest monthJuly — average high 79°F (26°C)
  • Coolest monthJanuary — average low 32°F (0°C)
  • Wettest monthDecember (5.3 in)
  • Driest monthJune (2.9 in)
  • Annual precipitation50 in