| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.72 | 0.70 | 0.02 |
| Feb | 0.72 | 0.72 | 0.00 |
| Mar | 1.39 | 1.37 | 0.02 |
| Apr | 2.41 | 2.47 | -0.06 |
| May | 3.39 | 3.40 | -0.01 |
| Jun | 4.38 | 4.49 | -0.11 |
| Jul | 4.30 | 4.11 | 0.19 |
| Aug | 3.59 | 3.40 | 0.19 |
| Sep | 2.91 | 2.94 | -0.03 |
| Oct | 2.68 | 2.75 | -0.07 |
| Nov | 1.25 | 1.21 | 0.04 |
| Dec | 0.87 | 0.92 | -0.05 |
28.61 | 28.48 | 0.13 |