| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.49 | 3.63 | -0.14 |
| Feb | 2.91 | 2.85 | 0.06 |
| Mar | 4.05 | 3.91 | 0.14 |
| Apr | 3.42 | 3.60 | -0.18 |
| May | 3.78 | 3.91 | -0.13 |
| Jun | 4.46 | 4.51 | -0.05 |
| Jul | 5.53 | 5.05 | 0.48 |
| Aug | 5.23 | 5.55 | -0.32 |
| Sep | 5.31 | 5.50 | -0.19 |
| Oct | 3.87 | 4.41 | -0.54 |
| Nov | 3.23 | 3.36 | -0.13 |
| Dec | 3.44 | 3.57 | -0.13 |
48.72 | 49.85 | -1.13 |