| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.04 | 1.00 | 0.04 |
| Feb | 1.05 | 1.06 | -0.01 |
| Mar | 1.94 | 1.88 | 0.06 |
| Apr | 3.71 | 3.54 | 0.17 |
| May | 4.55 | 4.48 | 0.07 |
| Jun | 5.50 | 5.39 | 0.11 |
| Jul | 4.31 | 3.93 | 0.38 |
| Aug | 4.23 | 4.27 | -0.04 |
| Sep | 3.69 | 3.55 | 0.14 |
| Oct | 2.55 | 2.54 | 0.01 |
| Nov | 1.83 | 1.71 | 0.12 |
| Dec | 1.25 | 1.26 | -0.01 |
35.65 | 34.61 | 1.04 |