| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.68 | 3.86 | -0.18 |
| Feb | 4.19 | 4.39 | -0.20 |
| Mar | 4.80 | 4.98 | -0.18 |
| Apr | 4.84 | 4.97 | -0.13 |
| May | 5.17 | 5.26 | -0.09 |
| Jun | 4.62 | 4.81 | -0.19 |
| Jul | 4.35 | 4.56 | -0.21 |
| Aug | 3.60 | 3.64 | -0.04 |
| Sep | 3.71 | 3.80 | -0.09 |
| Oct | 3.79 | 3.80 | -0.01 |
| Nov | 3.80 | 3.79 | 0.01 |
| Dec | 4.54 | 4.83 | -0.29 |
51.09 | 52.69 | -1.60 |