San Luis Obispo rainfall for 2018
San Luis Obispo picked up 12.52 inches of rain in 2018. Measurable rain, 0.01 inch or more in a day, fell on 40 days at San Luis Obispo McChesney Field; the wettest day brought 2.07 inches on Mar 21, 2018. The 1991-2020 normal for a full year is 17.94 inches. The total landed 5.42 inches below the normal, which works out to 30% less. 2018 ranks 19th out of 27 complete years, wettest first, in a record that starts in 1998.
Previous year, 2017Following year, 2019Back to San Luis Obispo rainfall totals
San Luis Obispo rainfall for 2018
| Year total | 12.52 inches | 2018 |
|---|---|---|
| 1991-2020 normal | 17.94 inches | Averages are 1991-2020 normals from NCEI. |
| Departure vs normal | -5.42 inches (-30%) | 70% of normal |
| Year rank | 19th of 27 | Complete years from 1998, wettest first |
| Rain days | 40 | |
| Wettest day | 2.07 inches |
Rain by month in 2018
Every day with measurable rain in 2018
Daily totals come from San Luis Obispo McChesney Field, which appears in GHCN-Daily with records going back to 1998. Station observations are from GHCN-Daily, with a 1-3 day lag and quality checks by NOAA.
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.