| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.77 | 0.87 | -0.10 |
| Feb | 0.87 | 0.88 | -0.01 |
| Mar | 1.56 | 1.49 | 0.07 |
| Apr | 2.79 | 2.96 | -0.17 |
| May | 4.07 | 4.10 | -0.03 |
| Jun | 4.53 | 4.70 | -0.17 |
| Jul | 4.21 | 4.28 | -0.07 |
| Aug | 4.23 | 4.16 | 0.07 |
| Sep | 3.31 | 3.31 | 0.00 |
| Oct | 2.88 | 2.88 | 0.00 |
| Nov | 1.69 | 1.64 | 0.05 |
| Dec | 1.13 | 1.24 | -0.11 |
32.04 | 32.51 | -0.47 |