| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.32 | 0.27 | 0.05 |
| Feb | 0.51 | 0.42 | 0.09 |
| Mar | 0.88 | 0.76 | 0.12 |
| Apr | 2.08 | 1.98 | 0.10 |
| May | 3.77 | 3.44 | 0.33 |
| Jun | 3.17 | 3.10 | 0.07 |
| Jul | 2.70 | 2.66 | 0.04 |
| Aug | 1.94 | 2.14 | -0.20 |
| Sep | 1.38 | 1.37 | 0.01 |
| Oct | 1.33 | 1.32 | 0.01 |
| Nov | 0.47 | 0.39 | 0.08 |
| Dec | 0.36 | 0.32 | 0.04 |
18.91 | 18.17 | 0.74 |