| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.27 | 3.32 | -0.05 |
| Feb | 2.89 | 2.96 | -0.07 |
| Mar | 3.87 | 4.01 | -0.14 |
| Apr | 4.48 | 4.60 | -0.12 |
| May | 4.81 | 4.92 | -0.11 |
| Jun | 4.76 | 4.69 | 0.07 |
| Jul | 4.19 | 4.41 | -0.22 |
| Aug | 3.40 | 3.49 | -0.09 |
| Sep | 3.17 | 3.15 | 0.02 |
| Oct | 3.13 | 3.12 | 0.01 |
| Nov | 3.08 | 3.15 | -0.07 |
| Dec | 3.49 | 3.60 | -0.11 |
44.54 | 45.42 | -0.88 |