| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.44 | 3.61 | -0.17 |
| Feb | 3.30 | 3.52 | -0.22 |
| Mar | 4.36 | 4.68 | -0.32 |
| Apr | 4.08 | 4.23 | -0.15 |
| May | 3.69 | 3.76 | -0.07 |
| Jun | 4.11 | 4.22 | -0.11 |
| Jul | 3.56 | 3.51 | 0.05 |
| Aug | 3.42 | 3.42 | 0.00 |
| Sep | 3.76 | 3.83 | -0.07 |
| Oct | 4.70 | 4.93 | -0.23 |
| Nov | 3.83 | 3.82 | 0.01 |
| Dec | 4.49 | 4.69 | -0.20 |
46.74 | 48.22 | -1.48 |