| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.06 | 2.10 | -0.04 |
| Feb | 1.85 | 1.88 | -0.03 |
| Mar | 2.53 | 2.52 | 0.01 |
| Apr | 3.81 | 3.72 | 0.09 |
| May | 4.55 | 4.65 | -0.10 |
| Jun | 4.11 | 4.08 | 0.03 |
| Jul | 4.15 | 3.68 | 0.47 |
| Aug | 3.63 | 3.45 | 0.18 |
| Sep | 3.31 | 3.37 | -0.06 |
| Oct | 3.09 | 3.09 | 0.00 |
| Nov | 2.67 | 2.67 | 0.00 |
| Dec | 2.14 | 2.12 | 0.02 |
37.90 | 37.33 | 0.57 |