| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.90 | 3.95 | -0.05 |
| Feb | 3.28 | 3.37 | -0.09 |
| Mar | 4.50 | 4.71 | -0.21 |
| Apr | 4.38 | 4.49 | -0.11 |
| May | 3.56 | 3.52 | 0.04 |
| Jun | 4.10 | 4.23 | -0.13 |
| Jul | 3.60 | 3.73 | -0.13 |
| Aug | 4.05 | 4.18 | -0.13 |
| Sep | 4.24 | 4.20 | 0.04 |
| Oct | 4.71 | 4.73 | -0.02 |
| Nov | 3.99 | 4.06 | -0.07 |
| Dec | 4.66 | 4.82 | -0.16 |
48.97 | 49.99 | -1.02 |