| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.55 | 0.54 | 0.01 |
| Feb | 0.64 | 0.57 | 0.07 |
| Mar | 1.20 | 1.27 | -0.07 |
| Apr | 2.12 | 2.04 | 0.08 |
| May | 2.60 | 2.48 | 0.12 |
| Jun | 2.05 | 2.18 | -0.13 |
| Jul | 2.81 | 2.81 | 0.00 |
| Aug | 2.41 | 2.36 | 0.05 |
| Sep | 1.27 | 1.35 | -0.08 |
| Oct | 0.96 | 1.07 | -0.11 |
| Nov | 0.66 | 0.66 | 0.00 |
| Dec | 0.54 | 0.57 | -0.03 |
17.81 | 17.90 | -0.09 |