| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.15 | 4.19 | -0.04 |
| Feb | 3.69 | 3.73 | -0.04 |
| Mar | 4.53 | 4.65 | -0.12 |
| Apr | 4.05 | 4.12 | -0.07 |
| May | 3.87 | 3.94 | -0.07 |
| Jun | 4.26 | 4.11 | 0.15 |
| Jul | 4.02 | 4.21 | -0.19 |
| Aug | 4.45 | 4.58 | -0.13 |
| Sep | 3.84 | 3.90 | -0.06 |
| Oct | 3.43 | 3.63 | -0.20 |
| Nov | 3.67 | 3.88 | -0.21 |
| Dec | 4.37 | 4.72 | -0.35 |
48.33 | 49.66 | -1.33 |