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Westley CDP, California

Official LSAD Designation: Westley CDP • Census GEOID: 0684480 • Stanislaus County

Climate Normals & Weather Observations

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

Reference Weather Station: TRACY CARBONA, CA US (ID: USC00048999) • Located 12.3 miles from community center • Elevation: 41.1 m
Month Average High (°F) Average Low (°F) Mean Temp (°F) Precipitation (in)
January 57.2° 36.4° 46.8° 2.34"
February 62.1° 38.9° 50.5° 2.57"
March 68.0° 41.6° 54.8° 1.72"
April 73.4° 45.0° 59.2° 0.99"
May 80.4° 50.3° 65.4° 0.72"
June 88.3° 54.9° 71.6° 0.15"
July 93.2° 56.6° 74.9° 0.00"
August 92.1° 55.6° 73.9° 0.03"
September 88.5° 53.5° 71.0° 0.08"
October 78.9° 48.1° 63.5° 0.69"
November 66.7° 40.7° 53.7° 1.11"
December 56.3° 36.4° 46.4° 2.32"

Annual Temperature History

2010–2025, completed calendar years only.

NOAA station MODESTO CITY CO AP, CA US (ID: USW00023258) • 14.7 miles from community center .

This annual reference station differs from the monthly normals station (ID: USC00048999), which has no available annual mean history.

Annual mean Annual mean of daily highs Annual mean of daily lows
Annual temperature history at MODESTO CITY CO AP, CA 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. 45.0 54.3 63.5 72.8 82.0 2010 2014 2018 2021 2025 Year Annual mean temperature (°F) 2010: Annual mean 61.9°F 2011: Annual mean 61.3°F 2012: Annual mean 63.1°F 2013: Annual mean 63.2°F 2014: Annual mean 65.3°F 2015: Annual mean 65.4°F 2016: Annual mean 65.6°F 2017: Annual mean 65.4°F 2018: Annual mean 63.9°F 2019: Annual mean 63.6°F 2021: Annual mean 62.9°F 2022: Annual mean 63.3°F 2023: Annual mean 61.9°F 2024: Annual mean 64.9°F 2010: Annual mean of daily highs 73.7°F 2011: Annual mean of daily highs 73.8°F 2012: Annual mean of daily highs 76.3°F 2013: Annual mean of daily highs 77.0°F 2014: Annual mean of daily highs 78.3°F 2015: Annual mean of daily highs 78.4°F 2016: Annual mean of daily highs 78.3°F 2017: Annual mean of daily highs 78.0°F 2018: Annual mean of daily highs 76.9°F 2019: Annual mean of daily highs 76.1°F 2020: Annual mean of daily highs 77.8°F 2021: Annual mean of daily highs 75.5°F 2022: Annual mean of daily highs 76.5°F 2023: Annual mean of daily highs 74.0°F 2024: Annual mean of daily highs 77.3°F 2010: Annual mean of daily lows 50.2°F 2011: Annual mean of daily lows 48.8°F 2012: Annual mean of daily lows 49.9°F 2013: Annual mean of daily lows 49.4°F 2014: Annual mean of daily lows 52.3°F 2015: Annual mean of daily lows 52.3°F 2016: Annual mean of daily lows 53.0°F 2017: Annual mean of daily lows 52.8°F 2018: Annual mean of daily lows 51.0°F 2019: Annual mean of daily lows 51.1°F 2021: Annual mean of daily lows 50.3°F 2022: Annual mean of daily lows 50.1°F 2023: Annual mean of daily lows 49.7°F 2024: Annual mean of daily lows 52.4°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 61.9 73.7 50.2
2011 61.3 73.8 48.8
2012 63.1 76.3 49.9
2013 63.2 77.0 49.4
2014 65.3 78.3 52.3
2015 65.4 78.4 52.3
2016 65.6 78.3 53.0
2017 65.4 78.0 52.8
2018 63.9 76.9 51.0
2019 63.6 76.1 51.1
2020 Unavailable 77.8 Unavailable
2021 62.9 75.5 50.3
2022 63.3 76.5 50.1
2023 61.9 74.0 49.7
2024 64.9 77.3 52.4
2025 Unavailable Unavailable Unavailable
Source: NOAA NCEI 1991–2020 U.S. Climate Normals, National Weather Service.