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Norco city, California

Official LSAD Designation: Norco city • Census GEOID: 0651560 • Riverside County

Climate Normals & Weather Observations

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

Reference Weather Station: CHINO AP, CA US (ID: USW00003179) • Located 5.9 miles from community center • Elevation: 198.1 m
Month Average High (°F) Average Low (°F) Mean Temp (°F) Precipitation (in)
January 69.5° 41.7° 55.6° 2.17"
February 69.8° 42.9° 56.4° 2.68"
March 72.5° 45.8° 59.1° 1.43"
April 77.0° 48.7° 62.8° 0.55"
May 81.1° 54.3° 67.7° 0.17"
June 87.6° 58.5° 73.0° 0.02"
July 93.7° 62.9° 78.3° 0.08"
August 96.3° 63.2° 79.8° 0.01"
September 92.7° 60.4° 76.5° 0.06"
October 84.5° 53.3° 68.9° 0.53"
November 76.3° 45.1° 60.7° 0.59"
December 68.7° 40.4° 54.6° 1.69"

Annual Temperature History

2010–2025, completed calendar years only.

NOAA station CHINO AP, CA US (ID: USW00003179) • 5.9 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 CHINO AP, 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. 44.0 55.0 66.0 77.0 88.0 2010 2014 2018 2021 2025 Year Annual mean temperature (°F) 2011: Annual mean 63.2°F 2012: Annual mean 65.3°F 2013: Annual mean 64.6°F 2014: Annual mean 67.2°F 2015: Annual mean 67.9°F 2016: Annual mean 67.7°F 2017: Annual mean 68.2°F 2019: Annual mean 64.3°F 2020: Annual mean 68.5°F 2021: Annual mean 66.7°F 2022: Annual mean 67.6°F 2023: Annual mean 64.2°F 2024: Annual mean 65.2°F 2011: Annual mean of daily highs 78.3°F 2012: Annual mean of daily highs 81.1°F 2013: Annual mean of daily highs 80.3°F 2014: Annual mean of daily highs 82.5°F 2015: Annual mean of daily highs 83.1°F 2016: Annual mean of daily highs 83.0°F 2017: Annual mean of daily highs 83.2°F 2019: Annual mean of daily highs 78.2°F 2020: Annual mean of daily highs 84.0°F 2021: Annual mean of daily highs 81.9°F 2022: Annual mean of daily highs 83.2°F 2023: Annual mean of daily highs 78.0°F 2024: Annual mean of daily highs 80.2°F 2011: Annual mean of daily lows 48.2°F 2012: Annual mean of daily lows 49.5°F 2013: Annual mean of daily lows 48.8°F 2014: Annual mean of daily lows 51.9°F 2015: Annual mean of daily lows 52.7°F 2016: Annual mean of daily lows 52.5°F 2017: Annual mean of daily lows 53.2°F 2019: Annual mean of daily lows 50.3°F 2020: Annual mean of daily lows 53.0°F 2021: Annual mean of daily lows 51.5°F 2022: Annual mean of daily lows 52.0°F 2023: Annual mean of daily lows 50.5°F 2024: Annual mean of daily lows 50.2°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 63.2 78.3 48.2
2012 65.3 81.1 49.5
2013 64.6 80.3 48.8
2014 67.2 82.5 51.9
2015 67.9 83.1 52.7
2016 67.7 83.0 52.5
2017 68.2 83.2 53.2
2018 Unavailable Unavailable Unavailable
2019 64.3 78.2 50.3
2020 68.5 84.0 53.0
2021 66.7 81.9 51.5
2022 67.6 83.2 52.0
2023 64.2 78.0 50.5
2024 65.2 80.2 50.2
2025 Unavailable Unavailable Unavailable
Source: NOAA NCEI 1991–2020 U.S. Climate Normals, National Weather Service.