| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.60 | 1.45 | 0.15 |
| Feb | 1.18 | 1.12 | 0.06 |
| Mar | 1.86 | 1.74 | 0.12 |
| Apr | 3.07 | 3.02 | 0.05 |
| May | 3.51 | 3.40 | 0.11 |
| Jun | 3.94 | 4.08 | -0.14 |
| Jul | 3.47 | 3.51 | -0.04 |
| Aug | 3.39 | 3.39 | 0.00 |
| Sep | 3.08 | 3.13 | -0.05 |
| Oct | 3.01 | 2.83 | 0.18 |
| Nov | 2.17 | 1.99 | 0.18 |
| Dec | 1.79 | 1.64 | 0.15 |
32.07 | 31.30 | 0.77 |