| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.47 | 3.46 | 0.01 |
| Feb | 3.19 | 3.17 | 0.02 |
| Mar | 3.43 | 3.49 | -0.06 |
| Apr | 3.18 | 3.29 | -0.11 |
| May | 3.33 | 3.22 | 0.11 |
| Jun | 5.55 | 5.72 | -0.17 |
| Jul | 5.75 | 5.59 | 0.16 |
| Aug | 6.13 | 6.71 | -0.58 |
| Sep | 4.56 | 4.78 | -0.22 |
| Oct | 3.79 | 3.97 | -0.18 |
| Nov | 2.47 | 2.61 | -0.14 |
| Dec | 3.15 | 3.40 | -0.25 |
48.00 | 49.41 | -1.41 |