| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.74 | 0.83 | -0.09 |
| Feb | 0.77 | 0.87 | -0.10 |
| Mar | 1.52 | 1.50 | 0.02 |
| Apr | 2.94 | 2.86 | 0.08 |
| May | 4.17 | 4.23 | -0.06 |
| Jun | 4.85 | 4.53 | 0.32 |
| Jul | 3.99 | 3.98 | 0.01 |
| Aug | 4.21 | 4.37 | -0.16 |
| Sep | 3.38 | 3.18 | 0.20 |
| Oct | 2.52 | 2.48 | 0.04 |
| Nov | 1.49 | 1.50 | -0.01 |
| Dec | 1.08 | 1.17 | -0.09 |
31.66 | 31.50 | 0.16 |