| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.54 | 3.59 | -0.05 |
| Feb | 2.81 | 2.94 | -0.13 |
| Mar | 4.13 | 4.14 | -0.01 |
| Apr | 3.61 | 3.93 | -0.32 |
| May | 3.74 | 3.78 | -0.04 |
| Jun | 4.19 | 4.48 | -0.29 |
| Jul | 4.32 | 4.34 | -0.02 |
| Aug | 4.16 | 4.11 | 0.05 |
| Sep | 4.58 | 5.01 | -0.43 |
| Oct | 3.26 | 3.44 | -0.18 |
| Nov | 3.35 | 3.49 | -0.14 |
| Dec | 3.40 | 3.57 | -0.17 |
45.09 | 46.82 | -1.73 |