San Diego - Temperature Averages by Decade





Summarized here are the temperatures extending over eight decades at San Diego, California. Listed for every decade from the 1940s to the 2010s are averages for maximum and minimum daily temperatures in degrees Fahrenheit and Celsius. That's followed with information on the number of hot and cold days.

Each decade covers a standard 10-year range. For instance the 1990s includes weather measurements from Jan 1, 1990 to Dec 31, 1999. All the temperature data were collected at San Diego's International Airport.

High Temperature for Each Decade

Average daily maximum temperature at San Diego
High °F Decade High °C
71.5 2010s 22.0
69.3 2000s 20.7
70.2 1990s 21.2
71.5 1980s 21.9
70.6 1970s 21.4
70.3 1960s 21.3
70.8 1950s 21.5
70.8 1940s 21.6

Low Temperature for Each Decade

Average daily minimum temperature at San Diego
Low °F Decade Low °C
59.1 2010s 15.0
57.8 2000s 14.4
57.6 1990s 14.2
58.8 1980s 14.9
57.8 1970s 14.3
55.9 1960s 13.3
56.0 1950s 13.3
54.7 1940s 12.6

Hot Days per Decade

Total days per year on average when the temperature in San Diego reached at least 70 or 90 °F
Decade 70 °F
21 °C
90 °F
32 °C
2010s 209 5
2000s 172 2
1990s 193 2
1980s 216 4
1970s 199 5
1960s 189 3
1950s 199 3
1940s 209 2

Cold Days per Decade

Total days per year on average when the temperature in San Diego dropped to 32 °F or lower
Decade 32 °F
0 °C
2010 0
2000 0
1990 0
1980 0
1970 0
1960 0
1950 0
1940 0
Reference

Jay Lawrimore, Ron Ray, Scott Applequist, Bryant Korzeniewski, Matthew Menne. 2016. Global Summary of the Year, Version 1.0. NOAA National Centers for Environmental Information.

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