| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.58 | 3.27 | 0.31 |
| Feb | 2.90 | 2.60 | 0.30 |
| Mar | 3.63 | 3.35 | 0.28 |
| Apr | 4.11 | 3.85 | 0.26 |
| May | 3.94 | 3.91 | 0.03 |
| Jun | 4.49 | 4.47 | 0.02 |
| Jul | 4.43 | 4.56 | -0.13 |
| Aug | 4.37 | 4.26 | 0.11 |
| Sep | 3.79 | 3.67 | 0.12 |
| Oct | 4.41 | 4.41 | 0.00 |
| Nov | 3.84 | 3.60 | 0.24 |
| Dec | 4.06 | 3.90 | 0.16 |
47.55 | 45.85 | 1.70 |