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Millwood CDP, Pennsylvania

Official LSAD Designation: Millwood CDP • Census GEOID: 4249960 • Westmoreland County

Climate Normals & Weather Observations

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

Reference Weather Station: LOYALHANNA LAKE, PA US (ID: USC00365212) • Located 11.5 miles from community center • Elevation: 301.8 m
Month Average High (°F) Average Low (°F) Mean Temp (°F) Precipitation (in)
January 36.6° 18.6° 27.6° 3.07"
February 39.9° 19.6° 29.8° 2.51"
March 49.4° 26.7° 38.0° 3.25"
April 62.4° 36.1° 49.2° 3.76"
May 71.8° 46.0° 58.9° 4.00"
June 79.5° 54.9° 67.2° 4.13"
July 83.3° 59.0° 71.1° 4.33"
August 81.6° 58.3° 70.0° 4.60"
September 75.7° 51.2° 63.4° 4.00"
October 63.8° 39.9° 51.9° 2.88"
November 51.7° 29.7° 40.7° 3.34"
December 40.5° 24.2° 32.3° 3.57"

Annual Temperature History

2010–2025, completed calendar years only.

NOAA station LOYALHANNA LAKE, PA US (ID: USC00365212) • 11.5 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 LOYALHANNA LAKE, PA 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. 36.0 44.0 52.0 60.0 68.0 2010 2014 2018 2021 2025 Year Annual mean temperature (°F) 2017: Annual mean 51.4°F 2019: Annual mean 50.7°F 2024: Annual mean 53.7°F 2017: Annual mean of daily highs 62.7°F 2019: Annual mean of daily highs 62.0°F 2024: Annual mean of daily highs 65.3°F 2017: Annual mean of daily lows 40.0°F 2019: Annual mean of daily lows 39.4°F 2024: Annual mean of daily lows 42.0°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 Unavailable Unavailable Unavailable
2011 Unavailable Unavailable Unavailable
2012 Unavailable Unavailable Unavailable
2013 Unavailable Unavailable Unavailable
2014 Unavailable Unavailable Unavailable
2015 Unavailable Unavailable Unavailable
2016 Unavailable Unavailable Unavailable
2017 51.4 62.7 40.0
2018 Unavailable Unavailable Unavailable
2019 50.7 62.0 39.4
2020 Unavailable Unavailable Unavailable
2021 Unavailable Unavailable Unavailable
2022 Unavailable Unavailable Unavailable
2023 Unavailable Unavailable Unavailable
2024 53.7 65.3 42.0
2025 Unavailable Unavailable Unavailable
Source: NOAA NCEI 1991–2020 U.S. Climate Normals, National Weather Service.