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Lake Riverside CDP, California

Official LSAD Designation: Lake Riverside CDP • Census GEOID: 0639715 • Riverside County

Climate Normals & Weather Observations

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

Reference Weather Station: PALOMAR MTN OBSY, CA US (ID: USC00046657) • Located 9.9 miles from community center • Elevation: 1,691.6 m
Month Average High (°F) Average Low (°F) Mean Temp (°F) Precipitation (in)
January 51.4° 37.1° 44.2° 5.93"
February 51.0° 36.1° 43.6° 7.34"
March 56.0° 38.7° 47.3° 4.61"
April 61.3° 41.8° 51.5° 2.00"
May 69.3° 48.4° 58.8° 0.89"
June 78.5° 57.0° 67.8° 0.17"
July 84.3° 63.9° 74.1° 0.29"
August 84.4° 64.5° 74.5° 0.68"
September 79.3° 59.5° 69.4° 0.48"
October 69.1° 50.8° 59.9° 1.21"
November 58.2° 42.5° 50.3° 2.25"
December 50.7° 36.6° 43.7° 4.56"

Annual Temperature History

2010–2025, completed calendar years only.

NOAA station PALOMAR MTN OBSY, CA US (ID: USC00046657) • 9.9 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 PALOMAR MTN OBSY, CA 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 50.0 57.0 64.0 71.0 2010 2014 2018 2021 2025 Year Annual mean temperature (°F) 2011: Annual mean 55.8°F 2012: Annual mean 58.1°F 2013: Annual mean 57.3°F 2014: Annual mean 59.3°F 2015: Annual mean 58.0°F 2016: Annual mean 58.8°F 2017: Annual mean 59.2°F 2018: Annual mean 58.2°F 2019: Annual mean 55.6°F 2022: Annual mean 58.0°F 2023: Annual mean 54.6°F 2024: Annual mean 58.0°F 2025: Annual mean 58.0°F 2011: Annual mean of daily highs 64.7°F 2012: Annual mean of daily highs 67.1°F 2013: Annual mean of daily highs 66.5°F 2014: Annual mean of daily highs 68.5°F 2015: Annual mean of daily highs 66.7°F 2016: Annual mean of daily highs 67.6°F 2017: Annual mean of daily highs 68.1°F 2018: Annual mean of daily highs 67.0°F 2019: Annual mean of daily highs 64.1°F 2022: Annual mean of daily highs 67.2°F 2023: Annual mean of daily highs 62.9°F 2024: Annual mean of daily highs 66.6°F 2025: Annual mean of daily highs 66.6°F 2011: Annual mean of daily lows 46.9°F 2012: Annual mean of daily lows 49.1°F 2013: Annual mean of daily lows 48.1°F 2014: Annual mean of daily lows 50.1°F 2015: Annual mean of daily lows 49.4°F 2016: Annual mean of daily lows 49.9°F 2017: Annual mean of daily lows 50.3°F 2018: Annual mean of daily lows 49.4°F 2019: Annual mean of daily lows 47.0°F 2022: Annual mean of daily lows 48.7°F 2023: Annual mean of daily lows 46.2°F 2024: Annual mean of daily lows 49.3°F 2025: Annual mean of daily lows 49.4°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 55.8 64.7 46.9
2012 58.1 67.1 49.1
2013 57.3 66.5 48.1
2014 59.3 68.5 50.1
2015 58.0 66.7 49.4
2016 58.8 67.6 49.9
2017 59.2 68.1 50.3
2018 58.2 67.0 49.4
2019 55.6 64.1 47.0
2020 Unavailable Unavailable Unavailable
2021 Unavailable Unavailable Unavailable
2022 58.0 67.2 48.7
2023 54.6 62.9 46.2
2024 58.0 66.6 49.3
2025 58.0 66.6 49.4
Source: NOAA NCEI 1991–2020 U.S. Climate Normals, National Weather Service.