| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.90 | 0.93 | -0.03 |
| Feb | 0.86 | 0.94 | -0.08 |
| Mar | 1.36 | 1.43 | -0.07 |
| Apr | 2.41 | 2.48 | -0.07 |
| May | 3.26 | 3.43 | -0.17 |
| Jun | 4.51 | 4.55 | -0.04 |
| Jul | 4.11 | 4.24 | -0.13 |
| Aug | 3.68 | 3.92 | -0.24 |
| Sep | 3.21 | 3.39 | -0.18 |
| Oct | 2.97 | 3.15 | -0.18 |
| Nov | 1.67 | 1.78 | -0.11 |
| Dec | 1.28 | 1.47 | -0.19 |
30.22 | 31.71 | -1.49 |