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Oregon city, Illinois

Official LSAD Designation: Oregon city • Census GEOID: 1756484 • Ogle County

Climate Normals & Weather Observations

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

Reference Weather Station: POLO 5NW, IL US (ID: USC00116897) • Located 14.0 miles from community center • Elevation: 260.9 m
Month Average High (°F) Average Low (°F) Mean Temp (°F) Precipitation (in)
January 30.1° 13.3° 21.7° 1.94"
February 34.7° 16.8° 25.7° 1.95"
March 47.8° 27.5° 37.6° 2.79"
April 61.1° 37.7° 49.4° 3.85"
May 73.0° 49.3° 61.1° 4.72"
June 82.0° 59.0° 70.5° 5.07"
July 84.5° 61.6° 73.0° 4.40"
August 82.8° 59.2° 71.0° 3.71"
September 76.8° 51.2° 64.0° 3.59"
October 63.9° 40.3° 52.1° 3.21"
November 48.2° 29.3° 38.7° 2.65"
December 35.1° 19.2° 27.2° 2.14"

Annual Temperature History

2010–2025, completed calendar years only.

NOAA station POLO 5NW, IL US (ID: USC00116897) • 14.0 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 POLO 5NW, 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. 32.0 41.0 50.0 59.0 68.0 2010 2014 2018 2021 2025 Year Annual mean temperature (°F) 2010: Annual mean 50.0°F 2011: Annual mean 49.9°F 2012: Annual mean 52.7°F 2013: Annual mean 47.8°F 2014: Annual mean 46.1°F 2015: Annual mean 49.9°F 2016: Annual mean 51.9°F 2010: Annual mean of daily highs 61.3°F 2011: Annual mean of daily highs 60.2°F 2012: Annual mean of daily highs 64.6°F 2013: Annual mean of daily highs 58.7°F 2014: Annual mean of daily highs 57.1°F 2015: Annual mean of daily highs 60.6°F 2016: Annual mean of daily highs 62.1°F 2010: Annual mean of daily lows 38.7°F 2011: Annual mean of daily lows 39.5°F 2012: Annual mean of daily lows 40.9°F 2013: Annual mean of daily lows 36.8°F 2014: Annual mean of daily lows 35.1°F 2015: Annual mean of daily lows 39.1°F 2016: Annual mean of daily lows 41.7°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 50.0 61.3 38.7
2011 49.9 60.2 39.5
2012 52.7 64.6 40.9
2013 47.8 58.7 36.8
2014 46.1 57.1 35.1
2015 49.9 60.6 39.1
2016 51.9 62.1 41.7
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.