| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.53 | 3.78 | -0.25 |
| Feb | 3.16 | 3.38 | -0.22 |
| Mar | 4.47 | 4.57 | -0.10 |
| Apr | 4.07 | 4.21 | -0.14 |
| May | 3.47 | 3.51 | -0.04 |
| Jun | 4.01 | 3.93 | 0.08 |
| Jul | 3.27 | 3.22 | 0.05 |
| Aug | 3.78 | 3.98 | -0.20 |
| Sep | 3.83 | 3.84 | -0.01 |
| Oct | 4.29 | 4.43 | -0.14 |
| Nov | 3.57 | 3.59 | -0.02 |
| Dec | 4.60 | 4.77 | -0.17 |
46.05 | 47.21 | -1.16 |