| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.68 | 4.65 | 0.03 |
| Feb | 4.69 | 4.76 | -0.07 |
| Mar | 4.86 | 4.83 | 0.03 |
| Apr | 3.97 | 4.01 | -0.04 |
| May | 3.78 | 3.88 | -0.10 |
| Jun | 4.41 | 4.46 | -0.05 |
| Jul | 4.90 | 4.79 | 0.11 |
| Aug | 4.29 | 4.56 | -0.27 |
| Sep | 4.03 | 4.22 | -0.19 |
| Oct | 3.47 | 3.51 | -0.04 |
| Nov | 4.01 | 4.23 | -0.22 |
| Dec | 4.59 | 4.69 | -0.10 |
51.68 | 52.59 | -0.91 |