| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.96 | 5.03 | -0.07 |
| Feb | 4.56 | 4.59 | -0.03 |
| Mar | 4.87 | 4.94 | -0.07 |
| Apr | 4.18 | 4.34 | -0.16 |
| May | 3.87 | 4.02 | -0.15 |
| Jun | 4.67 | 4.54 | 0.13 |
| Jul | 4.48 | 4.43 | 0.05 |
| Aug | 5.05 | 5.55 | -0.50 |
| Sep | 4.16 | 4.32 | -0.16 |
| Oct | 3.86 | 4.09 | -0.23 |
| Nov | 4.02 | 4.19 | -0.17 |
| Dec | 5.10 | 5.39 | -0.29 |
53.78 | 55.43 | -1.65 |