| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.40 | 3.43 | -0.03 |
| Feb | 3.03 | 3.07 | -0.04 |
| Mar | 4.09 | 4.19 | -0.10 |
| Apr | 3.38 | 3.45 | -0.07 |
| May | 3.53 | 3.63 | -0.10 |
| Jun | 3.71 | 3.90 | -0.19 |
| Jul | 4.43 | 4.80 | -0.37 |
| Aug | 4.67 | 4.57 | 0.10 |
| Sep | 4.19 | 4.44 | -0.25 |
| Oct | 4.16 | 4.51 | -0.35 |
| Nov | 3.37 | 3.44 | -0.07 |
| Dec | 3.88 | 4.09 | -0.21 |
45.84 | 47.52 | -1.68 |