| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.33 | 0.27 | 0.06 |
| Feb | 0.47 | 0.42 | 0.05 |
| Mar | 0.94 | 0.82 | 0.12 |
| Apr | 1.66 | 1.54 | 0.12 |
| May | 2.60 | 2.75 | -0.15 |
| Jun | 2.31 | 2.43 | -0.12 |
| Jul | 2.02 | 2.05 | -0.03 |
| Aug | 1.51 | 1.76 | -0.25 |
| Sep | 1.44 | 1.49 | -0.05 |
| Oct | 1.09 | 0.99 | 0.10 |
| Nov | 0.58 | 0.53 | 0.05 |
| Dec | 0.44 | 0.42 | 0.02 |
15.39 | 15.47 | -0.08 |