| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.41 | 3.68 | -0.27 |
| Feb | 2.95 | 3.05 | -0.10 |
| Mar | 4.13 | 4.32 | -0.19 |
| Apr | 3.85 | 4.01 | -0.16 |
| May | 3.85 | 3.95 | -0.10 |
| Jun | 4.22 | 4.53 | -0.31 |
| Jul | 4.36 | 4.41 | -0.05 |
| Aug | 4.22 | 4.36 | -0.14 |
| Sep | 3.96 | 4.05 | -0.09 |
| Oct | 4.07 | 4.09 | -0.02 |
| Nov | 3.40 | 3.40 | 0.00 |
| Dec | 4.21 | 4.41 | -0.20 |
46.63 | 48.26 | -1.63 |