Islip Weather in December

What's the weather like in Islip (New York) in December 2024?

The climate in Islip during December can be summarized as cool and damp.

December is in the winter in Islip and is typically the 3rd coldest month of the year. Daytime maximum temperatures average around a cold 6°C (43°F), whilst at night -2°C (29°F) is normal.

Islip weather averages (imperial / metric)
Daytime temperature 6.3°C 43.3°F
Nightly temperature -1.7°C 29°F
Average temperature 2.3°C 36.1°F
Daily sunshine 5.1 hrs
Avg rainfall 105 mm 4.1 ins
Rainy days 11 days
Sea temperature 9.6°C 49.2°F
Humidity 68%
Windspeed 20.2kph 13 mph

On average December is the 3rd wettest month of the year in Islip with around 105mm 4.1 inches of rain making it a damp time to visit. This rainfall is typically spread over 11 days, although this may vary considerably.

On the flip side this corresponds to an average of 5.1 hours of sunshine per day.

December temperatures in Islip

Islip average temperature in December

December rainfall

Islip average rain in December

December hourly sunshine

Islip average rain in December

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Islip in December 2024.

Other monthly averages

Best places to visit in December

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Islip weather stats

Islip weather statistics
Hottest month: July 27.8°C 82°F
Driest month: February 85mm 3.3ins
Sunniest month: August 9.1hrs
Coldest month: January 3.2°C 37.8°F
Wettest month: March 106mm 4.2ins
Map showing location of Islip (40.72982, -73.21039) Islip map pin © Google

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