Rainfall totals San Luis Obispo, CA

For 2026, San Luis Obispo has recorded 8.79 inches of rain, according to the station gauge. That is the year-to-date total for the city, measured from the start of the year through the most recent day with a complete reading. The normal rainfall for this same point in the year is 12.56 inches, so the two numbers show how this year's rain is running against the average. The reading comes from the station gauge at San Luis Obispo McChesney Field, and it is the basis for the GHCN-Daily station climate record for San Luis Obispo.

as of 1:18 PM PDT, October 8, 2026

Data from San Luis Obispo McChesney Field, with records back to 1998. Across the record from 1998, 100 percent of days have a reading, with 100 percent in 2025.

The last measurable rain in San Luis Obispo fell on Aug 27, 2026, 42 days ago. In October, rain days at this station are typically 2.5 days apart.

Under 17 U.S.C. 105, no copyright attaches to the government-produced figures on this page, including reports, alerts, station observations, and normals, which were created by the National Weather Service and other NOAA offices. The notice that 17 U.S.C. 403 requires appears in this sentence. It does not imply endorsement by or affiliation with those agencies. See: Data sources and attribution.

All California rainfall totals