| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.59 | 3.68 | -0.09 |
| Feb | 3.91 | 4.04 | -0.13 |
| Mar | 5.01 | 5.01 | 0.00 |
| Apr | 5.27 | 5.45 | -0.18 |
| May | 5.49 | 5.16 | 0.33 |
| Jun | 3.50 | 3.31 | 0.19 |
| Jul | 3.83 | 3.69 | 0.14 |
| Aug | 3.78 | 3.51 | 0.27 |
| Sep | 3.41 | 3.31 | 0.10 |
| Oct | 3.85 | 4.01 | -0.16 |
| Nov | 4.66 | 4.87 | -0.21 |
| Dec | 4.71 | 4.90 | -0.19 |
51.01 | 50.94 | 0.07 |