| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.85 | 0.81 | 0.04 |
| Feb | 0.92 | 0.84 | 0.08 |
| Mar | 1.76 | 1.63 | 0.13 |
| Apr | 3.09 | 2.87 | 0.22 |
| May | 4.36 | 4.23 | 0.13 |
| Jun | 4.84 | 4.96 | -0.12 |
| Jul | 4.25 | 4.03 | 0.22 |
| Aug | 4.41 | 4.40 | 0.01 |
| Sep | 3.32 | 3.37 | -0.05 |
| Oct | 2.51 | 2.49 | 0.02 |
| Nov | 1.61 | 1.53 | 0.08 |
| Dec | 1.22 | 1.17 | 0.05 |
33.14 | 32.33 | 0.81 |