| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.42 | 4.31 | 0.11 |
| Feb | 4.70 | 4.52 | 0.18 |
| Mar | 5.17 | 4.80 | 0.37 |
| Apr | 4.75 | 4.84 | -0.09 |
| May | 4.67 | 4.69 | -0.02 |
| Jun | 4.54 | 4.67 | -0.13 |
| Jul | 4.87 | 5.43 | -0.56 |
| Aug | 3.77 | 3.75 | 0.02 |
| Sep | 3.58 | 3.39 | 0.19 |
| Oct | 3.27 | 3.08 | 0.19 |
| Nov | 3.61 | 3.51 | 0.10 |
| Dec | 5.08 | 5.08 | 0.00 |
52.43 | 52.07 | 0.36 |