Climate - Riverside (California)

The climate of Riverside is arid subtropical, with very mild, relatively rainy winters and very hot, sunny summers.
The city is located at 250 meters (820 ft) above sea level, 90 km (55 mi) east of Los Angeles, and south-east of San Bernardino, in an area far enough from the ocean to be very hot in summer. In winter, however, sometimes it can get cold at night (although in general the temperature only reaches the freezing mark on the coldest nights of the year). Due to its location in an area surrounded by mountains, the city is also subject to air stagnation and therefore pollution.
In summer, the temperature can exceed 40 °C (104 °F) on the hottest days, and sometimes it can reach 44/45 °C (111/113 °F). In July 2018, it reached 47.8 °C (118 °F).
The average temperature of the coldest month (December) is of 12.5 °C (55 °F), that of the warmest month (August) is of 26.4 °C (79 °F). Here are the average temperatures.

Precipitation amounts to 260 millimeters (10.2 inches) per year: it is therefore scarce (although in winter there may be periods of bad weather). It ranges from 0 mm (0 in) in the driest months (June, July) to 65 mm (2.6 in) in the wettest (February). Here is the average precipitation.

Best Time

To visit Riverside, you can choose the periods from mid-March to mid-April and from mid-October to mid-November. In winter, the weather is often mild and sunny, but sometimes it can be cold at night, and it can also rain.

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