| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.95 | 4.15 | -0.20 |
| Feb | 3.51 | 3.57 | -0.06 |
| Mar | 4.84 | 5.14 | -0.30 |
| Apr | 4.35 | 4.68 | -0.33 |
| May | 3.46 | 3.41 | 0.05 |
| Jun | 3.97 | 4.05 | -0.08 |
| Jul | 3.22 | 3.17 | 0.05 |
| Aug | 3.71 | 3.74 | -0.03 |
| Sep | 4.04 | 4.07 | -0.03 |
| Oct | 4.54 | 4.66 | -0.12 |
| Nov | 4.24 | 4.23 | 0.01 |
| Dec | 4.76 | 4.95 | -0.19 |
48.59 | 49.82 | -1.23 |