| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.21 | 4.29 | -0.08 |
| Feb | 3.69 | 3.82 | -0.13 |
| Mar | 4.54 | 4.65 | -0.11 |
| Apr | 4.22 | 4.29 | -0.07 |
| May | 3.85 | 4.00 | -0.15 |
| Jun | 4.24 | 4.17 | 0.07 |
| Jul | 4.22 | 4.24 | -0.02 |
| Aug | 4.39 | 4.53 | -0.14 |
| Sep | 3.89 | 3.92 | -0.03 |
| Oct | 3.58 | 3.76 | -0.18 |
| Nov | 3.76 | 3.95 | -0.19 |
| Dec | 4.36 | 4.73 | -0.37 |
48.95 | 50.35 | -1.40 |