| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.41 | 3.60 | -0.19 |
| Feb | 2.77 | 2.89 | -0.12 |
| Mar | 4.31 | 4.43 | -0.12 |
| Apr | 3.61 | 3.59 | 0.02 |
| May | 3.43 | 3.61 | -0.18 |
| Jun | 4.06 | 4.27 | -0.21 |
| Jul | 4.57 | 4.53 | 0.04 |
| Aug | 4.54 | 4.78 | -0.24 |
| Sep | 4.14 | 4.16 | -0.02 |
| Oct | 3.92 | 3.99 | -0.07 |
| Nov | 3.16 | 3.19 | -0.03 |
| Dec | 4.13 | 4.38 | -0.25 |
46.05 | 47.42 | -1.37 |