| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.74 | 0.85 | -0.11 |
| Feb | 0.77 | 0.88 | -0.11 |
| Mar | 1.55 | 1.56 | -0.01 |
| Apr | 2.97 | 2.92 | 0.05 |
| May | 4.21 | 4.22 | -0.01 |
| Jun | 4.83 | 4.49 | 0.34 |
| Jul | 4.05 | 4.07 | -0.02 |
| Aug | 4.28 | 4.43 | -0.15 |
| Sep | 3.37 | 3.24 | 0.13 |
| Oct | 2.57 | 2.53 | 0.04 |
| Nov | 1.51 | 1.55 | -0.04 |
| Dec | 1.06 | 1.20 | -0.14 |
31.91 | 31.94 | -0.03 |