| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.78 | 0.98 | -0.20 |
| Feb | 0.79 | 0.94 | -0.15 |
| Mar | 1.65 | 1.77 | -0.12 |
| Apr | 2.92 | 3.14 | -0.22 |
| May | 4.15 | 4.28 | -0.13 |
| Jun | 4.62 | 4.92 | -0.30 |
| Jul | 4.21 | 4.39 | -0.18 |
| Aug | 4.62 | 4.41 | 0.21 |
| Sep | 3.35 | 3.38 | -0.03 |
| Oct | 2.76 | 2.97 | -0.21 |
| Nov | 1.60 | 1.71 | -0.11 |
| Dec | 1.13 | 1.35 | -0.22 |
32.58 | 34.24 | -1.66 |