| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.37 | 1.43 | -0.06 |
| Feb | 1.38 | 1.49 | -0.11 |
| Mar | 2.13 | 2.10 | 0.03 |
| Apr | 3.67 | 3.85 | -0.18 |
| May | 4.19 | 4.32 | -0.13 |
| Jun | 5.41 | 5.36 | 0.05 |
| Jul | 4.49 | 4.41 | 0.08 |
| Aug | 4.15 | 4.16 | -0.01 |
| Sep | 3.57 | 3.49 | 0.08 |
| Oct | 2.84 | 2.85 | -0.01 |
| Nov | 2.19 | 2.20 | -0.01 |
| Dec | 1.59 | 1.70 | -0.11 |
36.98 | 37.36 | -0.38 |