| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.76 | 0.94 | -0.18 |
| Feb | 0.79 | 0.89 | -0.10 |
| Mar | 1.60 | 1.72 | -0.12 |
| Apr | 2.89 | 3.14 | -0.25 |
| May | 4.16 | 4.24 | -0.08 |
| Jun | 4.54 | 4.73 | -0.19 |
| Jul | 4.21 | 4.49 | -0.28 |
| Aug | 4.52 | 4.36 | 0.16 |
| Sep | 3.31 | 3.30 | 0.01 |
| Oct | 2.78 | 2.90 | -0.12 |
| Nov | 1.58 | 1.71 | -0.13 |
| Dec | 1.08 | 1.30 | -0.22 |
32.22 | 33.72 | -1.50 |