| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 6.51 | 6.00 | 0.51 |
| Feb | 5.01 | 4.57 | 0.44 |
| Mar | 5.26 | 4.72 | 0.54 |
| Apr | 4.41 | 3.81 | 0.60 |
| May | 3.02 | 2.65 | 0.37 |
| Jun | 1.74 | 1.56 | 0.18 |
| Jul | 0.36 | 0.36 | 0.00 |
| Aug | 0.48 | 0.43 | 0.05 |
| Sep | 1.54 | 1.49 | 0.05 |
| Oct | 3.84 | 3.53 | 0.31 |
| Nov | 6.69 | 6.21 | 0.48 |
| Dec | 7.72 | 7.25 | 0.47 |
46.58 | 42.58 | 4.00 |