| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.16 | 3.13 | 0.03 |
| Feb | 2.48 | 2.45 | 0.03 |
| Mar | 3.53 | 3.42 | 0.11 |
| Apr | 4.41 | 4.47 | -0.06 |
| May | 4.57 | 4.69 | -0.12 |
| Jun | 4.69 | 4.66 | 0.03 |
| Jul | 4.26 | 3.99 | 0.27 |
| Aug | 3.13 | 2.94 | 0.19 |
| Sep | 3.06 | 2.97 | 0.09 |
| Oct | 3.09 | 3.10 | -0.01 |
| Nov | 3.10 | 3.12 | -0.02 |
| Dec | 3.20 | 3.22 | -0.02 |
42.68 | 42.16 | 0.52 |