| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.68 | 0.65 | 0.03 |
| Feb | 0.71 | 0.72 | -0.01 |
| Mar | 1.35 | 1.33 | 0.02 |
| Apr | 2.31 | 2.39 | -0.08 |
| May | 3.46 | 3.42 | 0.04 |
| Jun | 4.38 | 4.39 | -0.01 |
| Jul | 4.36 | 4.22 | 0.14 |
| Aug | 3.63 | 3.63 | 0.00 |
| Sep | 3.02 | 2.89 | 0.13 |
| Oct | 2.72 | 2.74 | -0.02 |
| Nov | 1.29 | 1.24 | 0.05 |
| Dec | 0.90 | 0.92 | -0.02 |
28.81 | 28.54 | 0.27 |