Rainfall amounts for select locations for the series of storms from Friday the 4th through the 7th:
Palm Springs Airport 0.68
Cathedral City 0.55
Rancho Mirage 0.39
Thousand Palms 0.38
La Quinta 0.31
Thermal 0.28
Twentynine Palms 0.10
Keenwild / Idyllwild 5.78
Pine Cove 4.54
Banning 3.42
Beaumont 2.78
Oak Glen 5.82
Borrego Springs 0.36
Big Bear Lake 6.08
Temecula 3.43
Murrieta 1.34
Devore 7.01
San Bernardino 4.80
Rialto 4.17
Chino Hills 4.10
Ontario [...]

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As predicted this storm didn’t bring much precipitation east of the mountains. For the Coachella Valley there were no measurable amounts.
Notice the greater rain amounts on this map west of the mountains.
(click on images for larger view)

Here’s a version of the estimated precipitation from AccuWeather.com

Updated storm totals from the National Weather Service:
RIVERSIDE COUNTY MOUNTAINS-

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The Coachella Valley, and surrounding areas, got a good steady dose of light rain Sunday morning. It started around 1am and lasted until 10am with rain totals around a half an inch here in the valley. No major Flooding was reported due to the light nature of the rain.
Snow levels dropped to around [...]

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