| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.94 | 0.92 | 0.02 |
| Feb | 0.99 | 0.97 | 0.02 |
| Mar | 1.66 | 1.62 | 0.04 |
| Apr | 2.86 | 2.92 | -0.06 |
| May | 3.95 | 3.94 | 0.01 |
| Jun | 4.39 | 4.41 | -0.02 |
| Jul | 4.27 | 4.20 | 0.07 |
| Aug | 4.08 | 4.12 | -0.04 |
| Sep | 3.64 | 3.70 | -0.06 |
| Oct | 3.14 | 3.21 | -0.07 |
| Nov | 1.83 | 1.78 | 0.05 |
| Dec | 1.33 | 1.30 | 0.03 |
33.08 | 33.09 | -0.01 |