San Luis Obispo rainfall for 2021
San Luis Obispo picked up 15.33 inches of rain in 2021. Measurable rain, 0.01 inch or more in a day, fell on 31 days at San Luis Obispo McChesney Field; the wettest day brought 3.66 inches on Jan 28, 2021. The 1991-2020 normal for a full year is 17.94 inches. The total landed 2.61 inches below the normal, which works out to 15% less. 2021 ranks 15th out of 27 complete years, wettest first, in a record that starts in 1998.
Previous year, 2020Following year, 2022Back to San Luis Obispo rainfall totals
San Luis Obispo rainfall for 2021
| Year total | 15.33 inches | 2021 |
|---|---|---|
| 1991-2020 normal | 17.94 inches | Averages are 1991-2020 normals from NCEI. |
| Departure vs normal | -2.61 inches (-15%) | 85% of normal |
| Year rank | 15th of 27 | Complete years from 1998, wettest first |
| Rain days | 31 | |
| Wettest day | 3.66 inches |
Rain by month in 2021
Every day with measurable rain in 2021
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.
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