| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.30 | 0.30 | 0.00 |
| Feb | 0.52 | 0.50 | 0.02 |
| Mar | 0.99 | 1.00 | -0.01 |
| Apr | 1.86 | 1.83 | 0.03 |
| May | 2.82 | 2.94 | -0.12 |
| Jun | 2.11 | 2.25 | -0.14 |
| Jul | 1.55 | 1.67 | -0.12 |
| Aug | 1.32 | 1.37 | -0.05 |
| Sep | 1.32 | 1.30 | 0.02 |
| Oct | 1.21 | 1.29 | -0.08 |
| Nov | 0.60 | 0.58 | 0.02 |
| Dec | 0.49 | 0.47 | 0.02 |
15.09 | 15.50 | -0.41 |