| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.65 | 3.63 | 0.02 |
| Feb | 2.94 | 2.92 | 0.02 |
| Mar | 4.24 | 4.15 | 0.09 |
| Apr | 3.72 | 3.91 | -0.19 |
| May | 3.91 | 3.82 | 0.09 |
| Jun | 4.42 | 4.51 | -0.09 |
| Jul | 4.33 | 4.37 | -0.04 |
| Aug | 4.20 | 4.13 | 0.07 |
| Sep | 4.62 | 5.01 | -0.39 |
| Oct | 3.41 | 3.45 | -0.04 |
| Nov | 3.42 | 3.47 | -0.05 |
| Dec | 3.50 | 3.60 | -0.10 |
46.36 | 46.97 | -0.61 |