| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.68 | 3.78 | -0.10 |
| Feb | 2.89 | 3.03 | -0.14 |
| Mar | 4.02 | 4.19 | -0.17 |
| Apr | 3.97 | 4.06 | -0.09 |
| May | 4.17 | 4.23 | -0.06 |
| Jun | 4.91 | 4.88 | 0.03 |
| Jul | 4.77 | 4.82 | -0.05 |
| Aug | 4.75 | 4.76 | -0.01 |
| Sep | 4.61 | 4.79 | -0.18 |
| Oct | 4.61 | 4.85 | -0.24 |
| Nov | 3.63 | 3.69 | -0.06 |
| Dec | 4.42 | 4.67 | -0.25 |
50.43 | 51.75 | -1.32 |