| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.59 | 3.63 | -0.04 |
| Feb | 2.97 | 2.90 | 0.07 |
| Mar | 4.14 | 4.02 | 0.12 |
| Apr | 3.68 | 3.58 | 0.10 |
| May | 3.79 | 3.66 | 0.13 |
| Jun | 4.52 | 4.53 | -0.01 |
| Jul | 4.94 | 4.81 | 0.13 |
| Aug | 4.80 | 4.64 | 0.16 |
| Sep | 5.14 | 5.32 | -0.18 |
| Oct | 3.61 | 3.72 | -0.11 |
| Nov | 3.49 | 3.38 | 0.11 |
| Dec | 3.54 | 3.45 | 0.09 |
48.21 | 47.64 | 0.57 |