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Crab Orchard CDP, Illinois

Official LSAD Designation: Crab Orchard CDP • Census GEOID: 1717094 • Williamson County

Climate Normals & Weather Observations

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

Reference Weather Station: HARRISBURG, IL US (ID: USC00113879) • Located 15.7 miles from community center • Elevation: 111.3 m
Month Average High (°F) Average Low (°F) Mean Temp (°F) Precipitation (in)
January 42.9° 24.0° 33.4° 3.79"
February 47.7° 28.3° 38.0° 3.13"
March 58.1° 36.1° 47.1° 4.90"
April 69.4° 45.7° 57.6° 5.26"
May 78.2° 56.5° 67.3° 4.31"
June 86.0° 65.1° 75.5° 4.92"
July 89.1° 68.4° 78.7° 3.49"
August 88.2° 65.6° 76.9° 3.58"
September 82.4° 57.3° 69.8° 3.10"
October 71.2° 45.4° 58.3° 3.76"
November 57.4° 36.3° 46.8° 3.97"
December 46.8° 28.9° 37.8° 3.38"

Annual Temperature History

2010–2025, completed calendar years only.

NOAA station HARRISBURG, IL US (ID: USC00113879) • 15.7 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 HARRISBURG, IL 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. 43.0 50.5 58.0 65.5 73.0 2010 2014 2018 2021 2025 Year Annual mean temperature (°F) 2021: Annual mean 57.4°F 2022: Annual mean 56.7°F 2024: Annual mean 59.0°F 2021: Annual mean of daily highs 67.9°F 2022: Annual mean of daily highs 67.9°F 2024: Annual mean of daily highs 69.7°F 2021: Annual mean of daily lows 46.9°F 2022: Annual mean of daily lows 45.5°F 2024: Annual mean of daily lows 48.3°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 Unavailable Unavailable Unavailable
2018 Unavailable Unavailable Unavailable
2019 Unavailable Unavailable Unavailable
2020 Unavailable Unavailable Unavailable
2021 57.4 67.9 46.9
2022 56.7 67.9 45.5
2023 Unavailable Unavailable Unavailable
2024 59.0 69.7 48.3
2025 Unavailable Unavailable Unavailable
Source: NOAA NCEI 1991–2020 U.S. Climate Normals, National Weather Service.