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St. Peter village, Illinois

Official LSAD Designation: St. Peter village • Census GEOID: 1767132 • Fayette County

Climate Normals & Weather Observations

30-year climate normals (1991–2020) and weather observations for St. Peter village.

Reference Weather Station: BROWNSTOWN 4 SW, IL US (ID: USC00111020) • Located 8.4 miles from community center • Elevation: 161.5 m
Month Average High (°F) Average Low (°F) Mean Temp (°F) Precipitation (in)
January 37.0° 21.3° 29.2° 2.82"
February 42.1° 25.3° 33.7° 2.41"
March 52.4° 34.7° 43.6° 3.17"
April 64.9° 45.4° 55.2° 4.39"
May 74.7° 55.1° 64.9° 5.34"
June 83.6° 65.1° 74.3° 4.13"
July 86.7° 67.0° 76.8° 3.74"
August 85.5° 64.1° 74.8° 3.15"
September 80.0° 56.4° 68.2° 3.38"
October 66.6° 44.9° 55.8° 2.89"
November 52.8° 35.5° 44.2° 3.63"
December 41.6° 26.7° 34.2° 2.15"

Annual Temperature History

2010–2025, completed calendar years only.

NOAA station VANDALIA, IL US (ID: USC00118781) • 14.6 miles from community center .

This annual reference station differs from the monthly normals station (ID: USC00111020), which has no available annual mean history.

Annual mean Annual mean of daily highs Annual mean of daily lows
Annual temperature history at VANDALIA, 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. 42.0 48.3 54.5 60.8 67.0 2010 2014 2018 2021 2025 Year Annual mean temperature (°F) 2010: Annual mean 54.3°F 2011: Annual mean 54.8°F 2010: Annual mean of daily highs 64.4°F 2011: Annual mean of daily highs 64.6°F 2010: Annual mean of daily lows 44.2°F 2011: Annual mean of daily lows 44.9°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 54.3 64.4 44.2
2011 54.8 64.6 44.9
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 Unavailable Unavailable Unavailable
2022 Unavailable Unavailable Unavailable
2023 Unavailable Unavailable Unavailable
2024 Unavailable Unavailable Unavailable
2025 Unavailable Unavailable Unavailable
Source: NOAA NCEI 1991–2020 U.S. Climate Normals, National Weather Service.