| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.77 | 0.74 | 0.03 |
| Feb | 0.80 | 0.83 | -0.03 |
| Mar | 1.47 | 1.49 | -0.02 |
| Apr | 2.73 | 2.77 | -0.04 |
| May | 3.93 | 3.81 | 0.12 |
| Jun | 4.22 | 4.31 | -0.09 |
| Jul | 4.35 | 4.23 | 0.12 |
| Aug | 3.96 | 4.10 | -0.14 |
| Sep | 3.31 | 3.33 | -0.02 |
| Oct | 2.94 | 2.97 | -0.03 |
| Nov | 1.60 | 1.55 | 0.05 |
| Dec | 1.11 | 1.10 | 0.01 |
31.19 | 31.23 | -0.04 |