Precipitation Data for Saint Helena, CA 94574
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total | % of 30yr Avg |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 30yr Avg (1981-2010) View in Rain Harvest Calculator |
6.94 | 7.36 | 5.11 | 1.98 | 1.3 | 0.16 | 0.00 | 0.05 | 0.28 | 1.85 | 4.49 | 7.12 | 36.64 | - |
| 5yr Avg (2013-2017) View in Rain Harvest Calculator |
5.38 | 6.75 | 3.31 | 1.22 | 0.17 | 0.15 | 0.01 | 0.00 | 0.28 | 1.50 | 1.54 | 5.53 | 25.84 | 71% |
| Recent Years | ||||||||||||||
| 2017 View in Rain Harvest Calculator |
14.90 | 11.66 | 2.84 | 1.63 | 0.02 | 0.08 | 0.0 | 0.0 | 0.04 | 0.36 | 0.89 | 0.14 | 32.56 | 89% |
| 2016 View in Rain Harvest Calculator |
10.64 | 1.94 | 9.72 | 0.84 | 0.42 | 0.0 | 0.0 | 0.0 | 0.0 | 5.89 | 1.18 | 3.41 | 34.04 | 93% |
| 2015 View in Rain Harvest Calculator |
0.08 | 6.14 | 0.27 | 1.96 | 0.02 | 0.08 | 0.07 | 0.02 | 0.56 | 0.08 | 1.79 | 6.28 | 17.35 | 47% |
| 2014 View in Rain Harvest Calculator |
0.12 | 13.58 | 3.06 | 0.96 | 0.18 | 0.0 | 0.0 | 0.00 | 0.44 | 1.17 | 3.10 | 17.42 | 40.03 | 109% |
| 2013 View in Rain Harvest Calculator |
1.18 | 0.45 | 0.66 | 0.7 | 0.22 | 0.60 | 0.0 | 0.0 | 0.38 | 0.0 | 0.76 | 0.38 | 5.33 | 15% |