Bay Area rainfall chart, December and January: Almost 50 inches at wettest spot
January's atmospheric river storms brought rainfall five or six times the average for the month to date in much of the Bay Area.
January’s atmospheric river storms brought rainfall five times the average for the month to date in much of the Bay Area.
For this point in the water year — which starts in October — the totals are around twice the average at many Bay Area spots. November was drier than normal, and December brought about double the average rainfall.
The totals below are from Dec. 1 to Jan. 16 at National Weather Service stations.
The site of the greatest reading, Uvas Canyon, is at 1,100 feet elevation near the Casa Loma fire station, about 2 miles east of Loma Prieta.
To the south, Mining Ridge, at 3,288 feet elevation in Big Sur, has recorded 84.16 inches from Dec. 1 to this week.
Read more: 35 key figures that sum up the atmospheric river blitz
| Location | Inches |
|---|---|
| Peninsula & South Bay | |
| Uvas Reservoir | 33.11 |
| Saratoga (Hwy 9/Pierce) | 31.13 |
| Foothills Preserve | 30.98 |
| Huddart Park | 28.6 |
| Windy Hill | 28.47 |
| Mount Hamilton | 28 |
| Calero Reservoir | 24.2 |
| Anderson Dam | 22.8 |
| San Francisco (Duboce) | 20.69 |
| Vasona Lake | 19.95 |
| San Francisco airport | 18.71 |
| San Jose (Lynbrook) | 16.43 |
| San Jose (Almaden Lake) | 16.19 |
| San Jose (Evergreen) | 15.11 |
| San Jose (Penitencia) | 14.6 |
| San Jose airport | 7.46 |
| East Bay | |
| Skyline/Redwood | 27.52 |
| Castro Valley | 26.42 |
| Danville | 24.39 |
| St. Mary’s College | 23.94 |
| Dublin/San Ramon | 23.8 |
| Marsh Creek | 23.55 |
| Tassajara | 22.46 |
| Richmond | 19.6 |
| Oakland airport | 19.19 |
| Alhambra Valley | 18.93 |
| Pittsburg | 18.32 |
| Hayward | 18.27 |
| Concord | 16.88 |
| Livermore | 14.33 |
| I-680/Calaveras | 14.03 |
| Los Vaqueros | 13.89 |
| Santa Cruz Mountains | |
| Uvas Canyon | 49.17 |
| Loma Prieta | 44.74 |
| Mount Umunhum | 44.02 |
| Boulder Creek | 43.9 |
| Ben Lomond landfill | 42.78 |
| Hwy. 17 summit | 42.43 |
| Lexington Reservoir | 37.79 |
| Mount Madonna | 32.95 |
| Coast Dairies | 31.58 |