| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.23 | 3.30 | -0.07 |
| Feb | 3.02 | 3.16 | -0.14 |
| Mar | 3.71 | 3.68 | 0.03 |
| Apr | 4.21 | 4.26 | -0.05 |
| May | 3.56 | 3.51 | 0.05 |
| Jun | 4.47 | 4.62 | -0.15 |
| Jul | 3.70 | 3.65 | 0.05 |
| Aug | 3.68 | 3.63 | 0.05 |
| Sep | 3.81 | 3.87 | -0.06 |
| Oct | 5.16 | 5.18 | -0.02 |
| Nov | 4.18 | 4.10 | 0.08 |
| Dec | 4.21 | 4.36 | -0.15 |
46.94 | 47.32 | -0.38 |