By Reginald Stanley. Posted January 22, 2023, 7:19 PM.

A shortwave trough over the Great Basin brought cold temperatures and light showers to most of Southern California on Thursday, primarily during the evening and late night hours.

Precipitation totals were mostly light, averaging around 0.1 inch at the majority of WeatherCurrents stations. Of the functioning WeatherCurrents stations, only Pinon Hills failed to record any measurable rainfall. Perris was next with only 0.01 inch, echoing similarly low totals in the eastern valleys. The Temecula Valley and surrounding areas fared generally better, closer to 0.10 inches and as high as 0.18 inches in northwestern Murrieta. At WeatherCurrents' northernmost station in Simi Valley, 0.21 inches fell - the highest total for the storm in the WeatherCurrents network. An especially notable total of 0.42 inches was reported in Temecula Valley's Wine Country (courtesy of Jim Sappington), much higher than the majority of the Inland Empire.

Drier, sunnier weather featuring Santa Ana Winds developed in the following days - offering the first real break from the extended wet pattern the region had been experiencing since December. Especially windy conditions were expected to develop across Southern California going into Monday. Temperatures have remained cool throughout the days, however, with especially chilly nights occurring alongside them. Frost advisories were issued by the National Weather Service for inland valleys early this week, as well as Freeze Warnings at some slightly higher elevations.

Here are the rain totals for the WeatherCurrents network and associates: