| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.37 | 3.36 | 0.01 |
| Feb | 3.25 | 3.20 | 0.05 |
| Mar | 4.02 | 4.05 | -0.03 |
| Apr | 4.13 | 4.01 | 0.12 |
| May | 3.72 | 3.57 | 0.15 |
| Jun | 4.12 | 4.18 | -0.06 |
| Jul | 3.78 | 3.67 | 0.11 |
| Aug | 3.89 | 3.75 | 0.14 |
| Sep | 4.05 | 3.88 | 0.17 |
| Oct | 4.94 | 4.81 | 0.13 |
| Nov | 3.85 | 3.72 | 0.13 |
| Dec | 4.46 | 4.43 | 0.03 |
47.58 | 46.63 | 0.95 |