| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.74 | 0.73 | 0.01 |
| Feb | 0.78 | 0.79 | -0.01 |
| Mar | 1.49 | 1.50 | -0.01 |
| Apr | 2.53 | 2.62 | -0.09 |
| May | 3.56 | 3.66 | -0.10 |
| Jun | 4.34 | 4.44 | -0.10 |
| Jul | 4.13 | 3.86 | 0.27 |
| Aug | 3.79 | 3.84 | -0.05 |
| Sep | 2.86 | 2.92 | -0.06 |
| Oct | 2.63 | 2.70 | -0.07 |
| Nov | 1.35 | 1.43 | -0.08 |
| Dec | 0.89 | 0.94 | -0.05 |
29.09 | 29.43 | -0.34 |