| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.35 | 4.74 | -0.39 |
| Feb | 4.67 | 4.84 | -0.17 |
| Mar | 4.97 | 5.18 | -0.21 |
| Apr | 4.58 | 4.82 | -0.24 |
| May | 4.02 | 4.02 | 0.00 |
| Jun | 4.57 | 4.66 | -0.09 |
| Jul | 4.70 | 5.02 | -0.32 |
| Aug | 3.65 | 3.79 | -0.14 |
| Sep | 3.61 | 3.78 | -0.17 |
| Oct | 3.11 | 2.85 | 0.26 |
| Nov | 3.58 | 3.74 | -0.16 |
| Dec | 5.37 | 5.56 | -0.19 |
51.18 | 53.00 | -1.82 |