| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.70 | 0.71 | -0.01 |
| Feb | 0.81 | 0.79 | 0.02 |
| Mar | 1.44 | 1.46 | -0.02 |
| Apr | 2.60 | 2.60 | 0.00 |
| May | 3.47 | 3.54 | -0.07 |
| Jun | 4.48 | 4.60 | -0.12 |
| Jul | 3.78 | 3.82 | -0.04 |
| Aug | 3.75 | 4.02 | -0.27 |
| Sep | 2.97 | 3.00 | -0.03 |
| Oct | 2.32 | 2.44 | -0.12 |
| Nov | 1.32 | 1.30 | 0.02 |
| Dec | 0.89 | 0.93 | -0.04 |
28.53 | 29.21 | -0.68 |