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Round Lake Beach village, Illinois

Official LSAD Designation: Round Lake Beach village • Census GEOID: 1766040 • Lake County

Climate Normals & Weather Observations

30-year climate normals (1991–2020) and weather observations for Round Lake Beach village.

Reference Weather Station: LAKE VILLA 2NE, IL US (ID: USC00114837) • Located 3.5 miles from community center • Elevation: 256.0 m
Month Average High (°F) Average Low (°F) Mean Temp (°F) Precipitation (in)
January 29.9° 14.6° 22.2° 2.07"
February 34.0° 17.5° 25.7° 1.89"
March 44.8° 26.6° 35.7° 2.64"
April 56.8° 37.1° 46.9° 4.12"
May 68.8° 47.8° 58.3° 4.44"
June 78.4° 57.9° 68.1° 4.20"
July 82.3° 63.1° 72.7° 3.92"
August 80.6° 61.8° 71.2° 3.27"
September 73.4° 54.4° 63.9° 3.36"
October 60.4° 43.1° 51.7° 3.04"
November 47.1° 30.9° 39.0° 2.54"
December 35.0° 20.8° 27.9° 2.28"

Annual Temperature History

2010–2025, completed calendar years only.

NOAA station MUNDELEIN 4 WSW, IL US (ID: USC00115961) • 8.8 miles from community center .

This annual reference station differs from the monthly normals station (ID: USC00114837), which has no available annual mean history.

Annual mean Annual mean of daily highs Annual mean of daily lows
Annual temperature history at MUNDELEIN 4 WSW, 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 40.3 48.5 56.8 65.0 2010 2014 2018 2021 2025 Year Annual mean temperature (°F) 2010: Annual mean 48.9°F 2011: Annual mean 48.1°F 2012: Annual mean 51.3°F 2013: Annual mean 46.0°F 2014: Annual mean 44.3°F 2015: Annual mean 47.9°F 2016: Annual mean 49.8°F 2017: Annual mean 49.0°F 2018: Annual mean 47.3°F 2019: Annual mean 46.7°F 2020: Annual mean 49.2°F 2021: Annual mean 49.5°F 2022: Annual mean 47.3°F 2023: Annual mean 50.0°F 2010: Annual mean of daily highs 58.4°F 2011: Annual mean of daily highs 57.0°F 2012: Annual mean of daily highs 61.4°F 2013: Annual mean of daily highs 55.7°F 2014: Annual mean of daily highs 54.0°F 2015: Annual mean of daily highs 57.3°F 2016: Annual mean of daily highs 59.1°F 2017: Annual mean of daily highs 58.5°F 2018: Annual mean of daily highs 56.5°F 2019: Annual mean of daily highs 55.9°F 2020: Annual mean of daily highs 58.7°F 2021: Annual mean of daily highs 59.3°F 2022: Annual mean of daily highs 56.8°F 2023: Annual mean of daily highs 59.4°F 2010: Annual mean of daily lows 39.5°F 2011: Annual mean of daily lows 39.2°F 2012: Annual mean of daily lows 41.2°F 2013: Annual mean of daily lows 36.2°F 2014: Annual mean of daily lows 34.7°F 2015: Annual mean of daily lows 38.5°F 2016: Annual mean of daily lows 40.6°F 2017: Annual mean of daily lows 39.5°F 2018: Annual mean of daily lows 38.0°F 2019: Annual mean of daily lows 37.5°F 2020: Annual mean of daily lows 39.7°F 2021: Annual mean of daily lows 39.7°F 2022: Annual mean of daily lows 37.8°F 2023: Annual mean of daily lows 40.6°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 48.9 58.4 39.5
2011 48.1 57.0 39.2
2012 51.3 61.4 41.2
2013 46.0 55.7 36.2
2014 44.3 54.0 34.7
2015 47.9 57.3 38.5
2016 49.8 59.1 40.6
2017 49.0 58.5 39.5
2018 47.3 56.5 38.0
2019 46.7 55.9 37.5
2020 49.2 58.7 39.7
2021 49.5 59.3 39.7
2022 47.3 56.8 37.8
2023 50.0 59.4 40.6
2024 Unavailable Unavailable Unavailable
2025 Unavailable Unavailable Unavailable
Source: NOAA NCEI 1991–2020 U.S. Climate Normals, National Weather Service.