| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.74 | 0.88 | -0.14 |
| Feb | 0.77 | 0.90 | -0.13 |
| Mar | 1.55 | 1.60 | -0.05 |
| Apr | 2.94 | 2.97 | -0.03 |
| May | 4.21 | 4.23 | -0.02 |
| Jun | 4.76 | 4.53 | 0.23 |
| Jul | 4.13 | 4.16 | -0.03 |
| Aug | 4.36 | 4.49 | -0.13 |
| Sep | 3.31 | 3.28 | 0.03 |
| Oct | 2.62 | 2.56 | 0.06 |
| Nov | 1.53 | 1.57 | -0.04 |
| Dec | 1.04 | 1.22 | -0.18 |
31.96 | 32.39 | -0.43 |