| 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 | 3.15 | -0.23 |
| May | 4.15 | 4.29 | -0.14 |
| Jun | 4.62 | 4.94 | -0.32 |
| Jul | 4.21 | 4.39 | -0.18 |
| Aug | 4.62 | 4.43 | 0.19 |
| Sep | 3.35 | 3.39 | -0.04 |
| Oct | 2.76 | 2.98 | -0.22 |
| Nov | 1.60 | 1.71 | -0.11 |
| Dec | 1.13 | 1.35 | -0.22 |
32.58 | 34.32 | -1.74 |