Summers in Paso Robles tend to be very hot, with daily temperatures frequently exceeding 100 ☏. Although snow is rare in Paso Robles, 4.0 inches fell on April 5, 1929, and on December 15, 1988. The most precipitation in 24 hours was 5.25 inches on December 6, 1966. The most precipitation in one month was 14.76 inches in January 1916. The wettest year was 1941 with 29.19 inches of precipitation and the dryest year was 1947 with 4.24 inches. The 30-year average annual Paso Robles rainfall is 15.17 inches, falling on an average of 47 days. The city commonly receives less than 10 inches of rain per year and typically, no rain falls from May through September. Paso Robles receives an average annual rainfall of about 14.71 inches per year, and most of this precipitation falls during winter and early spring. The area enjoys long-lasting, mild autumns and occasional early springs, giving the region a unique climate suitable for growing a variety of crops, ranging from primarily grapes, to olives, to almonds and other tree nuts. The area receives a mixture of these two types of climates, but the primary climate is defined by long, hot, dry summers and brief, cool, sometimes rainy winters. The Paso Robles area consists of two different climate types and classifications, which are a semi-arid, dry, steppe-type climate, and the typical, coastal Californian & ‘Mediterranean’ type. The skies of North San Luis Obispo County. Total rainfall for 2015-2016 season: 13.33 inch Paso Robles Rainfall totals for 2017-18 season.Click here for current Paso Robles weather forecasts. Click here to view rainfall records going back to 1942. Paso Robles Water Division has recorded an average annual rainfall total of 14.11″ from 1942 – June 2014.
This record of daily precipitation is measured in inches collected at the Paso Robles Water Yard, 1230 Paso Robles Street in downtown Paso Robles. Here are the rainfall records as recorded every morning by the Paso Robles Public Works Department. –If you are looking to find out how much it rained in Paso Robles, this is the page.
The river is typically dry for most of the year. The Salinas River flows under the Niblick Road bridge in Paso Robles on March 6, 2016, after recent storms have filled it up.