| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.72 | 0.68 | 0.04 |
| Feb | 0.79 | 0.81 | -0.02 |
| Mar | 1.47 | 1.44 | 0.03 |
| Apr | 2.55 | 2.60 | -0.05 |
| May | 3.76 | 3.72 | 0.04 |
| Jun | 4.36 | 4.30 | 0.06 |
| Jul | 4.29 | 4.42 | -0.13 |
| Aug | 3.94 | 4.01 | -0.07 |
| Sep | 3.15 | 3.03 | 0.12 |
| Oct | 2.81 | 2.79 | 0.02 |
| Nov | 1.47 | 1.48 | -0.01 |
| Dec | 0.95 | 1.04 | -0.09 |
30.26 | 30.32 | -0.06 |