| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.73 | 0.74 | -0.01 |
| Feb | 0.81 | 0.83 | -0.02 |
| Mar | 1.41 | 1.53 | -0.12 |
| Apr | 2.52 | 2.60 | -0.08 |
| May | 3.72 | 3.60 | 0.12 |
| Jun | 4.48 | 4.48 | 0.00 |
| Jul | 4.39 | 4.71 | -0.32 |
| Aug | 4.01 | 4.06 | -0.05 |
| Sep | 3.20 | 3.21 | -0.01 |
| Oct | 2.91 | 2.98 | -0.07 |
| Nov | 1.52 | 1.50 | 0.02 |
| Dec | 1.02 | 1.20 | -0.18 |
30.72 | 31.44 | -0.72 |