| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.74 | 0.97 | -0.23 |
| Feb | 0.78 | 0.91 | -0.13 |
| Mar | 1.60 | 1.71 | -0.11 |
| Apr | 2.90 | 3.07 | -0.17 |
| May | 4.17 | 4.19 | -0.02 |
| Jun | 4.59 | 4.67 | -0.08 |
| Jul | 4.16 | 4.31 | -0.15 |
| Aug | 4.48 | 4.49 | -0.01 |
| Sep | 3.28 | 3.27 | 0.01 |
| Oct | 2.66 | 2.74 | -0.08 |
| Nov | 1.57 | 1.70 | -0.13 |
| Dec | 1.05 | 1.28 | -0.23 |
31.98 | 33.31 | -1.33 |