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Julian CDP, California

Official LSAD Designation: Julian CDP • Census GEOID: 0637582 • San Diego County

Climate Normals & Weather Observations

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

Reference Weather Station: JULIAN CDF, CA US (ID: USC00044412) • Located 0.3 miles from community center • Elevation: 1,284.7 m
Month Average High (°F) Average Low (°F) Mean Temp (°F) Precipitation (in)
January 52.9° 38.8° 45.8° 4.66"
February 54.1° 38.8° 46.4° 5.34"
March 57.5° 40.9° 49.2° 3.90"
April 62.3° 42.8° 52.5° 1.94"
May 68.5° 47.1° 57.8° 0.82"
June 79.1° 55.2° 67.2° 0.10"
July 85.5° 62.5° 74.0° 0.24"
August 85.9° 62.4° 74.1° 0.29"
September 80.9° 57.4° 69.1° 0.35"
October 70.7° 49.7° 60.2° 1.11"
November 60.0° 43.4° 51.7° 2.26"
December 52.2° 38.1° 45.1° 3.47"

Annual Temperature History

2010–2025, completed calendar years only.

NOAA station JULIAN CDF, CA US (ID: USC00044412) • 0.3 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 JULIAN CDF, 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 51.3 58.5 65.8 73.0 2010 2014 2018 2021 2025 Year Annual mean temperature (°F) 2011: Annual mean 56.6°F 2012: Annual mean 59.0°F 2013: Annual mean 58.1°F 2014: Annual mean 60.6°F 2015: Annual mean 59.0°F 2017: Annual mean 59.9°F 2018: Annual mean 59.7°F 2019: Annual mean 56.5°F 2020: Annual mean 59.4°F 2021: Annual mean 59.1°F 2022: Annual mean 58.8°F 2023: Annual mean 56.2°F 2024: Annual mean 58.9°F 2025: Annual mean 59.3°F 2011: Annual mean of daily highs 65.9°F 2012: Annual mean of daily highs 68.8°F 2013: Annual mean of daily highs 67.7°F 2014: Annual mean of daily highs 70.4°F 2015: Annual mean of daily highs 68.5°F 2017: Annual mean of daily highs 69.7°F 2018: Annual mean of daily highs 69.1°F 2019: Annual mean of daily highs 65.6°F 2020: Annual mean of daily highs 69.4°F 2021: Annual mean of daily highs 69.9°F 2022: Annual mean of daily highs 69.7°F 2023: Annual mean of daily highs 65.6°F 2024: Annual mean of daily highs 68.8°F 2025: Annual mean of daily highs 69.0°F 2011: Annual mean of daily lows 47.2°F 2012: Annual mean of daily lows 49.3°F 2013: Annual mean of daily lows 48.6°F 2014: Annual mean of daily lows 50.9°F 2015: Annual mean of daily lows 49.6°F 2017: Annual mean of daily lows 50.1°F 2018: Annual mean of daily lows 50.4°F 2019: Annual mean of daily lows 47.4°F 2020: Annual mean of daily lows 49.5°F 2021: Annual mean of daily lows 48.3°F 2022: Annual mean of daily lows 48.0°F 2023: Annual mean of daily lows 46.8°F 2024: Annual mean of daily lows 48.9°F 2025: Annual mean of daily lows 49.6°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 Unavailable Unavailable Unavailable
2011 56.6 65.9 47.2
2012 59.0 68.8 49.3
2013 58.1 67.7 48.6
2014 60.6 70.4 50.9
2015 59.0 68.5 49.6
2016 Unavailable Unavailable Unavailable
2017 59.9 69.7 50.1
2018 59.7 69.1 50.4
2019 56.5 65.6 47.4
2020 59.4 69.4 49.5
2021 59.1 69.9 48.3
2022 58.8 69.7 48.0
2023 56.2 65.6 46.8
2024 58.9 68.8 48.9
2025 59.3 69.0 49.6
Source: NOAA NCEI 1991–2020 U.S. Climate Normals, National Weather Service.