| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.72 | 0.73 | -0.01 |
| Feb | 1.02 | 1.00 | 0.02 |
| Mar | 1.90 | 1.92 | -0.02 |
| Apr | 2.96 | 3.05 | -0.09 |
| May | 4.95 | 4.73 | 0.22 |
| Jun | 4.53 | 4.58 | -0.05 |
| Jul | 4.21 | 4.27 | -0.06 |
| Aug | 3.38 | 3.49 | -0.11 |
| Sep | 3.12 | 3.18 | -0.06 |
| Oct | 2.37 | 2.35 | 0.02 |
| Nov | 1.41 | 1.42 | -0.01 |
| Dec | 1.08 | 1.14 | -0.06 |
31.65 | 31.86 | -0.21 |