| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.68 | 4.60 | 0.08 |
| Feb | 4.78 | 4.69 | 0.09 |
| Mar | 4.96 | 4.82 | 0.14 |
| Apr | 4.59 | 4.71 | -0.12 |
| May | 3.75 | 3.96 | -0.21 |
| Jun | 4.37 | 4.33 | 0.04 |
| Jul | 4.65 | 4.99 | -0.34 |
| Aug | 3.46 | 3.44 | 0.02 |
| Sep | 3.68 | 3.65 | 0.03 |
| Oct | 3.22 | 2.84 | 0.38 |
| Nov | 4.07 | 3.71 | 0.36 |
| Dec | 5.38 | 5.12 | 0.26 |
51.59 | 50.86 | 0.73 |