| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.75 | 0.97 | -0.22 |
| Feb | 0.78 | 0.94 | -0.16 |
| Mar | 1.61 | 1.74 | -0.13 |
| Apr | 2.91 | 3.08 | -0.17 |
| May | 4.17 | 4.22 | -0.05 |
| Jun | 4.62 | 4.80 | -0.18 |
| Jul | 4.15 | 4.31 | -0.16 |
| Aug | 4.49 | 4.59 | -0.10 |
| Sep | 3.28 | 3.25 | 0.03 |
| Oct | 2.65 | 2.77 | -0.12 |
| Nov | 1.57 | 1.70 | -0.13 |
| Dec | 1.06 | 1.30 | -0.24 |
32.04 | 33.67 | -1.63 |