| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.71 | 0.72 | -0.01 |
| Feb | 1.07 | 1.08 | -0.01 |
| Mar | 1.94 | 1.93 | 0.01 |
| Apr | 2.52 | 2.43 | 0.09 |
| May | 4.81 | 4.71 | 0.10 |
| Jun | 4.09 | 3.99 | 0.10 |
| Jul | 4.13 | 3.84 | 0.29 |
| Aug | 3.70 | 3.62 | 0.08 |
| Sep | 2.46 | 2.31 | 0.15 |
| Oct | 2.34 | 2.29 | 0.05 |
| Nov | 1.22 | 1.19 | 0.03 |
| Dec | 1.09 | 1.04 | 0.05 |
30.08 | 29.15 | 0.93 |