| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.35 | 4.54 | -0.19 |
| Feb | 4.05 | 4.24 | -0.19 |
| Mar | 4.59 | 4.68 | -0.09 |
| Apr | 3.67 | 3.96 | -0.29 |
| May | 3.86 | 3.79 | 0.07 |
| Jun | 4.08 | 4.00 | 0.08 |
| Jul | 4.01 | 3.94 | 0.07 |
| Aug | 4.36 | 4.58 | -0.22 |
| Sep | 3.55 | 3.58 | -0.03 |
| Oct | 3.29 | 3.37 | -0.08 |
| Nov | 3.62 | 4.03 | -0.41 |
| Dec | 4.57 | 4.94 | -0.37 |
48.00 | 49.65 | -1.65 |