| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.42 | 1.53 | -0.11 |
| Feb | 1.74 | 1.72 | 0.02 |
| Mar | 2.44 | 2.36 | 0.08 |
| Apr | 3.73 | 3.56 | 0.17 |
| May | 4.44 | 4.49 | -0.05 |
| Jun | 4.91 | 4.87 | 0.04 |
| Jul | 4.05 | 4.03 | 0.02 |
| Aug | 3.94 | 4.05 | -0.11 |
| Sep | 3.85 | 3.65 | 0.20 |
| Oct | 2.77 | 2.69 | 0.08 |
| Nov | 2.36 | 2.27 | 0.09 |
| Dec | 1.90 | 1.93 | -0.03 |
37.55 | 37.15 | 0.40 |