| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.89 | 0.89 | 0.00 |
| Feb | 0.88 | 0.91 | -0.03 |
| Mar | 1.78 | 1.68 | 0.10 |
| Apr | 2.95 | 2.92 | 0.03 |
| May | 4.23 | 4.32 | -0.09 |
| Jun | 4.92 | 5.10 | -0.18 |
| Jul | 4.12 | 4.02 | 0.10 |
| Aug | 4.41 | 4.53 | -0.12 |
| Sep | 3.48 | 3.49 | -0.01 |
| Oct | 2.62 | 2.51 | 0.11 |
| Nov | 1.62 | 1.54 | 0.08 |
| Dec | 1.18 | 1.25 | -0.07 |
33.08 | 33.16 | -0.08 |