| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.40 | 4.28 | 0.12 |
| Feb | 3.93 | 3.81 | 0.12 |
| Mar | 4.61 | 4.62 | -0.01 |
| Apr | 4.25 | 4.29 | -0.04 |
| May | 4.09 | 4.24 | -0.15 |
| Jun | 4.34 | 4.34 | 0.00 |
| Jul | 4.39 | 4.65 | -0.26 |
| Aug | 4.73 | 4.70 | 0.03 |
| Sep | 4.17 | 4.08 | 0.09 |
| Oct | 3.74 | 3.77 | -0.03 |
| Nov | 3.97 | 3.96 | 0.01 |
| Dec | 4.71 | 4.75 | -0.04 |
51.33 | 51.49 | -0.16 |