- Latitude: 34.056
- Longitude: -117.6
High Temperatures
On average, the day in December with the warmest high temperature in custom location is December 2 at an average of 70.7 °F (21.5 °C).
On average, the day in December with the coldest high temperature in custom location is December 29 at an average of 65.4 °F (18.6 °C).
Records
The warmest recorded high temperature in December in custom location was 96.1 °F (35.6 °C) on December 6 in the year 1979 at ONTARIO — Integrated Surface Dataset (ISD) station ID: 722865 — Weather Bureau Army Navy (WBAN): 93180 .
The coldest recorded high temperature in December in custom location was 42.8 °F (6.0 °C) on December 31 in the year 2014 at NORTON AAF — Weather Bureau Army Navy (WBAN): 23122 .
Low Temperatures
On average, the day in December with the warmest low temperature in custom location is December 1 at an average of 44.3 °F (6.8 °C).
On average, the day in December with the coldest low temperature in custom location is December 27 at an average of 40.7 °F (4.8 °C).
Records
The warmest recorded low temperature in custom location was 77.0 °F (25.0 °C) on December 5 in the year 2023 at CORONA MUNICIPAL AIRPORT — Integrated Surface Dataset (ISD) station ID: 720333 — Weather Bureau Army Navy (WBAN): 53175 .
The coldest recorded low temperature in custom location was 21.2 °F (-6.0 °C) on December 7 in the year 2011 at CORONA MUNICIPAL AIRPORT — Integrated Surface Dataset (ISD) station ID: 720333 — Weather Bureau Army Navy (WBAN): 53175 .
Details
If you would like to see the temperatures for specific days, you can click on the corresponding links below: