| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.85 | 0.87 | -0.02 |
| Feb | 0.95 | 0.87 | 0.08 |
| Mar | 1.60 | 1.53 | 0.07 |
| Apr | 2.83 | 2.94 | -0.11 |
| May | 4.02 | 3.98 | 0.04 |
| Jun | 4.59 | 4.72 | -0.13 |
| Jul | 4.43 | 4.29 | 0.14 |
| Aug | 4.22 | 4.15 | 0.07 |
| Sep | 3.51 | 3.38 | 0.13 |
| Oct | 2.94 | 2.92 | 0.02 |
| Nov | 1.70 | 1.66 | 0.04 |
| Dec | 1.20 | 1.24 | -0.04 |
32.84 | 32.55 | 0.29 |