| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.55 | 1.60 | -0.05 |
| Feb | 1.87 | 1.94 | -0.07 |
| Mar | 2.71 | 2.64 | 0.07 |
| Apr | 4.22 | 4.15 | 0.07 |
| May | 5.43 | 5.31 | 0.12 |
| Jun | 5.15 | 5.42 | -0.27 |
| Jul | 4.57 | 4.40 | 0.17 |
| Aug | 4.18 | 3.83 | 0.35 |
| Sep | 3.84 | 3.92 | -0.08 |
| Oct | 3.34 | 3.32 | 0.02 |
| Nov | 2.47 | 2.50 | -0.03 |
| Dec | 1.87 | 1.76 | 0.11 |
41.20 | 40.79 | 0.41 |