| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.59 | 3.64 | -0.05 |
| Feb | 3.09 | 2.94 | 0.15 |
| Mar | 4.04 | 4.02 | 0.02 |
| Apr | 3.62 | 3.58 | 0.04 |
| May | 3.78 | 3.62 | 0.16 |
| Jun | 4.45 | 4.29 | 0.16 |
| Jul | 5.02 | 5.28 | -0.26 |
| Aug | 5.12 | 5.04 | 0.08 |
| Sep | 5.39 | 5.49 | -0.10 |
| Oct | 3.40 | 3.34 | 0.06 |
| Nov | 3.42 | 3.38 | 0.04 |
| Dec | 3.54 | 3.48 | 0.06 |
48.46 | 48.10 | 0.36 |