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Sparta city, Illinois

Official LSAD Designation: Sparta city • Census GEOID: 1771448 • Randolph County

Climate Normals & Weather Observations

30-year climate normals (1991–2020) and weather observations for Sparta city.

Reference Weather Station: SPARTA 1 W, IL US (ID: USC00118147) • Located 1.8 miles from community center • Elevation: 163.1 m
Month Average High (°F) Average Low (°F) Mean Temp (°F) Precipitation (in)
January 40.1° 21.6° 30.9° 3.11"
February 45.1° 25.2° 35.2° 2.57"
March 55.5° 33.2° 44.3° 3.95"
April 66.8° 43.2° 55.0° 5.16"
May 75.7° 54.1° 64.9° 5.17"
June 84.3° 62.4° 73.3° 4.31"
July 87.7° 65.6° 76.7° 4.68"
August 86.8° 63.6° 75.2° 3.54"
September 80.8° 55.4° 68.1° 3.03"
October 69.9° 44.2° 57.0° 3.34"
November 55.8° 34.5° 45.2° 4.08"
December 44.0° 26.0° 35.0° 2.70"

Annual Temperature History

2010–2025, completed calendar years only.

NOAA station KASKASKIA RVR NAVIGATION LOCK, IL US (ID: USC00114629) • 16.0 miles from community center .

This annual reference station differs from the monthly normals station (ID: USC00118147), which has no available annual mean history.

Annual mean Annual mean of daily highs Annual mean of daily lows
Annual temperature history at KASKASKIA RVR NAVIGATION LOCK, 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. 40.0 48.8 57.5 66.3 75.0 2010 2014 2018 2021 2025 Year Annual mean temperature (°F) 2010: Annual mean 56.9°F 2011: Annual mean 57.7°F 2012: Annual mean 59.4°F 2013: Annual mean 55.2°F 2014: Annual mean 54.2°F 2015: Annual mean 57.7°F 2017: Annual mean 58.9°F 2021: Annual mean 57.1°F 2023: Annual mean 57.8°F 2024: Annual mean 58.6°F 2025: Annual mean 57.1°F 2010: Annual mean of daily highs 67.7°F 2011: Annual mean of daily highs 68.1°F 2012: Annual mean of daily highs 71.8°F 2013: Annual mean of daily highs 66.2°F 2014: Annual mean of daily highs 65.4°F 2015: Annual mean of daily highs 68.5°F 2017: Annual mean of daily highs 70.3°F 2020: Annual mean of daily highs 66.3°F 2021: Annual mean of daily highs 66.7°F 2023: Annual mean of daily highs 69.1°F 2024: Annual mean of daily highs 69.3°F 2025: Annual mean of daily highs 68.0°F 2010: Annual mean of daily lows 46.1°F 2011: Annual mean of daily lows 47.3°F 2012: Annual mean of daily lows 47.0°F 2013: Annual mean of daily lows 44.2°F 2014: Annual mean of daily lows 42.9°F 2015: Annual mean of daily lows 46.9°F 2017: Annual mean of daily lows 47.6°F 2021: Annual mean of daily lows 47.5°F 2023: Annual mean of daily lows 46.4°F 2024: Annual mean of daily lows 47.8°F 2025: Annual mean of daily lows 46.3°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 56.9 67.7 46.1
2011 57.7 68.1 47.3
2012 59.4 71.8 47.0
2013 55.2 66.2 44.2
2014 54.2 65.4 42.9
2015 57.7 68.5 46.9
2016 Unavailable Unavailable Unavailable
2017 58.9 70.3 47.6
2018 Unavailable Unavailable Unavailable
2019 Unavailable Unavailable Unavailable
2020 Unavailable 66.3 Unavailable
2021 57.1 66.7 47.5
2022 Unavailable Unavailable Unavailable
2023 57.8 69.1 46.4
2024 58.6 69.3 47.8
2025 57.1 68.0 46.3
Source: NOAA NCEI 1991–2020 U.S. Climate Normals, National Weather Service.