| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.78 | 4.74 | 0.04 |
| Feb | 4.71 | 4.75 | -0.04 |
| Mar | 4.82 | 4.99 | -0.17 |
| Apr | 3.97 | 4.20 | -0.23 |
| May | 3.72 | 3.90 | -0.18 |
| Jun | 4.30 | 4.28 | 0.02 |
| Jul | 4.94 | 5.16 | -0.22 |
| Aug | 4.18 | 4.23 | -0.05 |
| Sep | 3.76 | 4.00 | -0.24 |
| Oct | 3.39 | 3.45 | -0.06 |
| Nov | 4.05 | 4.21 | -0.16 |
| Dec | 4.63 | 4.68 | -0.05 |
51.25 | 52.59 | -1.34 |