| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.93 | 0.95 | -0.02 |
| Feb | 0.97 | 0.96 | 0.01 |
| Mar | 1.72 | 1.71 | 0.01 |
| Apr | 2.91 | 2.95 | -0.04 |
| May | 4.03 | 3.91 | 0.12 |
| Jun | 4.62 | 4.59 | 0.03 |
| Jul | 4.36 | 4.19 | 0.17 |
| Aug | 4.24 | 4.26 | -0.02 |
| Sep | 3.57 | 3.49 | 0.08 |
| Oct | 2.99 | 3.01 | -0.02 |
| Nov | 1.80 | 1.77 | 0.03 |
| Dec | 1.28 | 1.30 | -0.02 |
33.42 | 33.09 | 0.33 |