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New Suffolk CDP, New York

Official LSAD Designation: New Suffolk CDP • Census GEOID: 3650727 • Suffolk County

Climate Normals & Weather Observations

30-year climate normals (1991–2020) and weather observations for New Suffolk CDP.

Reference Weather Station: MATTITUCK, NY US (ID: USC00305142) • Located 1.8 miles from community center • Elevation: 6.1 m
Month Average High (°F) Average Low (°F) Mean Temp (°F) Precipitation (in)
January 38.2° 22.6° 30.4° 3.61"
February 40.2° 23.7° 32.0° 3.12"
March 47.0° 29.5° 38.3° 4.25"
April 56.8° 38.7° 47.8° 4.06"
May 67.1° 48.3° 57.7° 3.45"
June 75.3° 58.7° 67.0° 3.75"
July 81.8° 64.8° 73.3° 3.08"
August 81.4° 64.3° 72.9° 4.12"
September 74.4° 56.7° 65.6° 3.79"
October 63.6° 46.0° 54.8° 4.04"
November 53.1° 36.0° 44.6° 3.50"
December 43.3° 28.2° 35.8° 4.26"

Annual Temperature History

2010–2025, completed calendar years only.

NOAA station MATTITUCK, NY US (ID: USC00305142) • 1.8 miles from community center .

This is the same reference station used for monthly normals.

Annual mean Annual mean of daily highs Annual mean of daily lows
Annual temperature history at MATTITUCK, NY US Year is the horizontal axis. Annual mean temperature in degrees Fahrenheit is the vertical axis. Dots show recorded years; lines connect consecutive available years only. Missing years are gaps, with no interpolation. Optional dashed lines show annual mean of daily highs and lows. Exact values appear in the data table below. 40.0 46.0 52.0 58.0 64.0 2010 2014 2018 2021 2025 Year Annual mean temperature (°F) 2010: Annual mean 53.2°F 2011: Annual mean 52.6°F 2014: Annual mean 51.0°F 2015: Annual mean 51.8°F 2017: Annual mean 52.4°F 2019: Annual mean 51.5°F 2020: Annual mean 53.0°F 2021: Annual mean 52.8°F 2010: Annual mean of daily highs 61.8°F 2011: Annual mean of daily highs 61.4°F 2014: Annual mean of daily highs 59.8°F 2015: Annual mean of daily highs 60.9°F 2017: Annual mean of daily highs 60.7°F 2019: Annual mean of daily highs 60.0°F 2020: Annual mean of daily highs 61.9°F 2021: Annual mean of daily highs 61.4°F 2010: Annual mean of daily lows 44.6°F 2011: Annual mean of daily lows 43.9°F 2014: Annual mean of daily lows 42.2°F 2015: Annual mean of daily lows 42.7°F 2017: Annual mean of daily lows 44.0°F 2019: Annual mean of daily lows 43.0°F 2020: Annual mean of daily lows 44.2°F 2021: Annual mean of daily lows 44.2°F

Source: NOAA NCEI Global Summary of the Year.

Annual temperature data table (°F)
Annual station temperatures, 2010–2025. Unavailable means no reported value.
Year Annual mean (°F) Annual mean of daily highs (°F) Annual mean of daily lows (°F)
2010 53.2 61.8 44.6
2011 52.6 61.4 43.9
2012 Unavailable Unavailable Unavailable
2013 Unavailable Unavailable Unavailable
2014 51.0 59.8 42.2
2015 51.8 60.9 42.7
2016 Unavailable Unavailable Unavailable
2017 52.4 60.7 44.0
2018 Unavailable Unavailable Unavailable
2019 51.5 60.0 43.0
2020 53.0 61.9 44.2
2021 52.8 61.4 44.2
2022 Unavailable Unavailable Unavailable
2023 Unavailable Unavailable Unavailable
2024 Unavailable Unavailable Unavailable
2025 Unavailable Unavailable Unavailable
Source: NOAA NCEI 1991–2020 U.S. Climate Normals, National Weather Service.