Skip to main content

Wellesley CDP, Massachusetts

Official LSAD Designation: Wellesley CDP • Census GEOID: 2574210 • Norfolk County

Climate Normals & Weather Observations

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

Reference Weather Station: NATICK, MA US (ID: USC00195175) • Located 3.5 miles from community center • Elevation: 54.9 m
Month Average High (°F) Average Low (°F) Mean Temp (°F) Precipitation (in)
January 35.2° 17.5° 26.4° 3.37"
February 38.2° 17.6° 27.9° 3.07"
March 46.1° 25.4° 35.7° 3.95"
April 58.0° 35.1° 46.6° 4.07"
May 67.7° 45.6° 56.7° 3.78"
June 76.5° 55.9° 66.2° 4.14"
July 81.8° 61.7° 71.8° 3.85"
August 80.4° 59.4° 69.9° 3.82"
September 73.0° 51.8° 62.4° 4.21"
October 61.7° 39.7° 50.7° 4.83"
November 51.3° 31.1° 41.2° 3.74"
December 40.7° 22.9° 31.8° 4.43"

Annual Temperature History

2010–2025, completed calendar years only.

NOAA station NATICK, MA US (ID: USC00195175) • 3.5 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 NATICK, MA 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. 37.0 43.8 50.5 57.3 64.0 2010 2014 2018 2021 2025 Year Annual mean temperature (°F) 2010: Annual mean 50.4°F 2011: Annual mean 49.8°F 2012: Annual mean 51.2°F 2010: Annual mean of daily highs 60.5°F 2011: Annual mean of daily highs 59.8°F 2012: Annual mean of daily highs 61.1°F 2010: Annual mean of daily lows 40.3°F 2011: Annual mean of daily lows 39.8°F 2012: Annual mean of daily lows 41.1°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 50.4 60.5 40.3
2011 49.8 59.8 39.8
2012 51.2 61.1 41.1
2013 Unavailable Unavailable Unavailable
2014 Unavailable Unavailable Unavailable
2015 Unavailable Unavailable Unavailable
2016 Unavailable Unavailable Unavailable
2017 Unavailable Unavailable Unavailable
2018 Unavailable Unavailable Unavailable
2019 Unavailable Unavailable Unavailable
2020 Unavailable Unavailable Unavailable
2021 Unavailable Unavailable Unavailable
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.