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South Ashburnham CDP, Massachusetts

Official LSAD Designation: South Ashburnham CDP • Census GEOID: 2562780 • Worcester County

Climate Normals & Weather Observations

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

Reference Weather Station: ASHBURNHAM, MA US (ID: USC00190190) • Located 1.4 miles from community center • Elevation: 337.7 m
Month Average High (°F) Average Low (°F) Mean Temp (°F) Precipitation (in)
January 30.6° 13.6° 22.1° 3.55"
February 33.0° 15.0° 24.0° 3.34"
March 41.3° 22.7° 32.0° 4.41"
April 54.6° 33.6° 44.1° 4.21"
May 66.0° 44.3° 55.1° 4.02"
June 74.6° 53.7° 64.1° 4.17"
July 79.6° 59.6° 69.6° 3.94"
August 78.1° 57.4° 67.7° 3.89"
September 70.8° 50.7° 60.8° 4.24"
October 57.4° 39.2° 48.3° 5.08"
November 45.9° 30.5° 38.2° 3.82"
December 35.2° 20.2° 27.7° 4.65"

Annual Temperature History

2010–2025, completed calendar years only.

NOAA station ASHBURNHAM, MA US (ID: USC00190190) • 1.4 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 ASHBURNHAM, 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. 33.0 40.0 47.0 54.0 61.0 2010 2014 2018 2021 2025 Year Annual mean temperature (°F) 2010: Annual mean 47.7°F 2011: Annual mean 46.9°F 2012: Annual mean 49.0°F 2013: Annual mean 46.0°F 2014: Annual mean 44.8°F 2015: Annual mean 45.7°F 2016: Annual mean 47.7°F 2017: Annual mean 46.7°F 2018: Annual mean 46.4°F 2019: Annual mean 45.6°F 2020: Annual mean 48.2°F 2021: Annual mean 47.4°F 2022: Annual mean 46.8°F 2023: Annual mean 48.0°F 2024: Annual mean 47.9°F 2025: Annual mean 46.2°F 2010: Annual mean of daily highs 57.2°F 2011: Annual mean of daily highs 56.1°F 2012: Annual mean of daily highs 58.2°F 2013: Annual mean of daily highs 55.2°F 2014: Annual mean of daily highs 54.0°F 2015: Annual mean of daily highs 55.6°F 2016: Annual mean of daily highs 57.5°F 2017: Annual mean of daily highs 55.8°F 2018: Annual mean of daily highs 55.2°F 2019: Annual mean of daily highs 54.9°F 2020: Annual mean of daily highs 57.5°F 2021: Annual mean of daily highs 56.2°F 2022: Annual mean of daily highs 56.6°F 2023: Annual mean of daily highs 56.6°F 2024: Annual mean of daily highs 57.0°F 2025: Annual mean of daily highs 55.6°F 2010: Annual mean of daily lows 38.2°F 2011: Annual mean of daily lows 37.8°F 2012: Annual mean of daily lows 39.7°F 2013: Annual mean of daily lows 36.8°F 2014: Annual mean of daily lows 35.7°F 2015: Annual mean of daily lows 35.7°F 2016: Annual mean of daily lows 37.9°F 2017: Annual mean of daily lows 37.6°F 2018: Annual mean of daily lows 37.6°F 2019: Annual mean of daily lows 36.2°F 2020: Annual mean of daily lows 38.9°F 2021: Annual mean of daily lows 38.6°F 2022: Annual mean of daily lows 37.0°F 2023: Annual mean of daily lows 39.3°F 2024: Annual mean of daily lows 38.8°F 2025: Annual mean of daily lows 36.7°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 47.7 57.2 38.2
2011 46.9 56.1 37.8
2012 49.0 58.2 39.7
2013 46.0 55.2 36.8
2014 44.8 54.0 35.7
2015 45.7 55.6 35.7
2016 47.7 57.5 37.9
2017 46.7 55.8 37.6
2018 46.4 55.2 37.6
2019 45.6 54.9 36.2
2020 48.2 57.5 38.9
2021 47.4 56.2 38.6
2022 46.8 56.6 37.0
2023 48.0 56.6 39.3
2024 47.9 57.0 38.8
2025 46.2 55.6 36.7
Source: NOAA NCEI 1991–2020 U.S. Climate Normals, National Weather Service.