| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.83 | 0.86 | -0.03 |
| Feb | 1.18 | 1.32 | -0.14 |
| Mar | 2.20 | 2.27 | -0.07 |
| Apr | 3.63 | 3.74 | -0.11 |
| May | 5.11 | 5.28 | -0.17 |
| Jun | 4.97 | 5.01 | -0.04 |
| Jul | 4.15 | 4.22 | -0.07 |
| Aug | 4.17 | 4.37 | -0.20 |
| Sep | 3.47 | 3.57 | -0.10 |
| Oct | 2.74 | 2.95 | -0.21 |
| Nov | 1.81 | 1.86 | -0.05 |
| Dec | 1.42 | 1.52 | -0.10 |
35.68 | 36.97 | -1.29 |