By Reginald Stanley. Posted April 30, 2019, 10:41 PM.

A low pressure system combined with a deep marine layer both produced scattered shower activity Monday and Tuesday, and across much of the region, this week's showers were the only noteworthy rains of the month.

Precipitation totals amounted to roughly 1/2 an inch or less in most locations. Among the wetter locations included Beaumont (Cherry Valley), South Fallbrook and nearby De Luz, with totals above 1/3 inch. A total of 0.56 inches was also reported in East Highland (courtesy of Peter Michas). To the east, Hemet and San Jacinto both received amounts of 0.30 and 0.35 inches respectively. The communities of Perris and Moreno Valley, as well as the Temecula Valley, were generally drier. In Temecula Valley's Wine Country, a total of 0.18 inches was reported (courtesy of Jim Sappington), matching a similar total reported in Central Murrieta. WeatherCurrents stations in Lake Elsinore, Riverside, and Pinon Hills each recorded no measurable precipitation at all through Tuesday evening. The feed for WeatherCurrents' station in Simi Valley was down during the storm.

Shower activity had mostly gone by Tuesday afternoon, as low pressure exited east. A particularly deep marine layer with a depth of 8,000 feet kept the majority of Southern California cloudy through mid-day Tuesday, while the deserts remained sunny. Weak high pressure is expected to develop for the remainder of the week, resulting in warmer temperatures. Low pressure could possibly re-enter the region next week, although current predictions remain uncertain.

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