| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.72 | 0.71 | 0.01 |
| Feb | 0.77 | 0.79 | -0.02 |
| Mar | 1.41 | 1.44 | -0.03 |
| Apr | 2.54 | 2.59 | -0.05 |
| May | 3.35 | 3.34 | 0.01 |
| Jun | 4.54 | 4.68 | -0.14 |
| Jul | 3.92 | 4.03 | -0.11 |
| Aug | 3.78 | 3.96 | -0.18 |
| Sep | 2.90 | 2.95 | -0.05 |
| Oct | 2.41 | 2.48 | -0.07 |
| Nov | 1.31 | 1.28 | 0.03 |
| Dec | 0.86 | 0.90 | -0.04 |
28.51 | 29.15 | -0.64 |