| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.17 | 2.16 | 0.01 |
| Feb | 1.58 | 1.55 | 0.03 |
| Mar | 1.81 | 1.77 | 0.04 |
| Apr | 2.56 | 2.68 | -0.12 |
| May | 2.71 | 2.62 | 0.09 |
| Jun | 3.00 | 3.01 | -0.01 |
| Jul | 3.18 | 3.13 | 0.05 |
| Aug | 3.29 | 3.16 | 0.13 |
| Sep | 3.63 | 3.62 | 0.01 |
| Oct | 4.15 | 4.31 | -0.16 |
| Nov | 3.04 | 3.08 | -0.04 |
| Dec | 2.65 | 2.52 | 0.13 |
33.77 | 33.61 | 0.16 |