| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.19 | 3.41 | -0.22 |
| Feb | 3.10 | 3.29 | -0.19 |
| Mar | 4.10 | 4.42 | -0.32 |
| Apr | 3.88 | 3.84 | 0.04 |
| May | 3.65 | 3.69 | -0.04 |
| Jun | 4.12 | 4.22 | -0.10 |
| Jul | 3.65 | 3.58 | 0.07 |
| Aug | 3.55 | 3.47 | 0.08 |
| Sep | 3.74 | 3.70 | 0.04 |
| Oct | 4.63 | 4.67 | -0.04 |
| Nov | 3.63 | 3.68 | -0.05 |
| Dec | 4.16 | 4.40 | -0.24 |
45.40 | 46.37 | -0.97 |