Riverside - Recent December Temperatures and Rainfall





The numbers here describe what the December weather in Riverside, California was like for every year since 2010. A series of tables gives December data by year for temperature and precipitation.

They begin with average maximum and minimum temperatures in degrees Fahrenheit and Celsius. That's followed by how many hot or cold days occurred each December. Then there's information on how much rain actually landed this month during recent years, as well as how often Riverside had wet weather.

The climate data come from weather measurements made at the Riverside Municipal Airport.

Temperature Weather iconTemperature

December temperature averages by year in Riverside
High °F Low °F Year High °C Low °C
67 45 2018 19 7
74 46 2017 24 8
66 47 2016 19 8
67 41 2015 19 5
66 48 2014 19 9
70 45 2013 21 7
64 45 2012 18 7
67 41 2011 20 5
67 46 2010 20 8
Number of days in December when the temperature in Riverside dropped to 32 or below, or rose to at least 70 degrees Fahrenheit
32 °F
0 °C
Year 70 °F
21 °C
0 2018 11
0 2017 22
0 2016 7
0 2015 10
0 2014 8
0 2013 17
0 2012 7
0 2011 12
1 2010 12

Rainy Weather iconRain

This table gives the total precipitation that fell on Riverside during December in each year from 2010. The number of days with precipitation counts the days when rainfall amounted to 0.01 inches (0.3 millimeters) or more.

Total rainfall for December in Riverside
Days Year Inches Milli­metres
2 2018 1.1 28
0 2017 0.0 0
8 2016 2.6 66
6 2015 0.7 17
7 2014 3.0 75
2 2013 0.2 4
10 2012 1.4 35
2 2011 0.5 12
13 2010 6.9 175
Reference

Jay Lawrimore. 2016. Global Summary of the Month, Version 1.0. NOAA National Centers for Environmental Information. 

Riverside - Recent Years
Riverside - Extremes
Back to Top