| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.90 | 3.80 | 0.10 |
| Feb | 3.50 | 3.51 | -0.01 |
| Mar | 3.94 | 3.89 | 0.05 |
| Apr | 3.47 | 3.41 | 0.06 |
| May | 4.27 | 4.26 | 0.01 |
| Jun | 5.48 | 5.05 | 0.43 |
| Jul | 6.29 | 6.45 | -0.16 |
| Aug | 7.27 | 7.58 | -0.31 |
| Sep | 7.88 | 8.57 | -0.69 |
| Oct | 4.49 | 4.71 | -0.22 |
| Nov | 3.72 | 3.82 | -0.10 |
| Dec | 3.67 | 3.75 | -0.08 |
57.88 | 58.80 | -0.92 |