| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 5.08 | 5.26 | -0.18 |
| Feb | 5.29 | 5.42 | -0.13 |
| Mar | 5.43 | 5.49 | -0.06 |
| Apr | 4.59 | 4.83 | -0.24 |
| May | 4.22 | 4.33 | -0.11 |
| Jun | 4.48 | 4.71 | -0.23 |
| Jul | 4.64 | 4.57 | 0.07 |
| Aug | 3.79 | 3.95 | -0.16 |
| Sep | 3.39 | 3.38 | 0.01 |
| Oct | 3.28 | 3.37 | -0.09 |
| Nov | 4.45 | 4.48 | -0.03 |
| Dec | 4.93 | 5.19 | -0.26 |
53.57 | 54.98 | -1.41 |