| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.51 | 3.75 | -0.24 |
| Feb | 2.92 | 3.02 | -0.10 |
| Mar | 4.24 | 4.25 | -0.01 |
| Apr | 3.77 | 3.83 | -0.06 |
| May | 3.70 | 3.97 | -0.27 |
| Jun | 4.48 | 4.39 | 0.09 |
| Jul | 4.45 | 4.47 | -0.02 |
| Aug | 4.31 | 4.31 | 0.00 |
| Sep | 4.71 | 5.03 | -0.32 |
| Oct | 3.49 | 3.42 | 0.07 |
| Nov | 3.34 | 3.36 | -0.02 |
| Dec | 3.61 | 3.59 | 0.02 |
46.53 | 47.39 | -0.86 |