| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.50 | 3.72 | -0.22 |
| Feb | 2.93 | 3.02 | -0.09 |
| Mar | 4.18 | 4.24 | -0.06 |
| Apr | 3.69 | 3.77 | -0.08 |
| May | 3.71 | 3.93 | -0.22 |
| Jun | 4.34 | 4.31 | 0.03 |
| Jul | 4.64 | 4.55 | 0.09 |
| Aug | 4.49 | 4.36 | 0.13 |
| Sep | 4.80 | 5.08 | -0.28 |
| Oct | 3.50 | 3.45 | 0.05 |
| Nov | 3.31 | 3.36 | -0.05 |
| Dec | 3.56 | 3.59 | -0.03 |
46.65 | 47.38 | -0.73 |