| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.49 | 4.44 | 0.05 |
| Feb | 4.26 | 4.47 | -0.21 |
| Mar | 4.68 | 4.71 | -0.03 |
| Apr | 3.54 | 3.84 | -0.30 |
| May | 3.53 | 3.89 | -0.36 |
| Jun | 4.26 | 4.17 | 0.09 |
| Jul | 4.08 | 3.87 | 0.21 |
| Aug | 4.54 | 4.60 | -0.06 |
| Sep | 3.69 | 4.19 | -0.50 |
| Oct | 3.57 | 3.64 | -0.07 |
| Nov | 3.74 | 3.90 | -0.16 |
| Dec | 4.52 | 4.79 | -0.27 |
48.90 | 50.51 | -1.61 |