| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.65 | 4.36 | 0.29 |
| Feb | 4.76 | 4.65 | 0.11 |
| Mar | 4.97 | 4.69 | 0.28 |
| Apr | 4.58 | 4.63 | -0.05 |
| May | 3.66 | 3.72 | -0.06 |
| Jun | 4.31 | 4.45 | -0.14 |
| Jul | 4.54 | 4.94 | -0.40 |
| Aug | 3.40 | 3.29 | 0.11 |
| Sep | 3.69 | 3.63 | 0.06 |
| Oct | 3.25 | 2.82 | 0.43 |
| Nov | 4.07 | 3.64 | 0.43 |
| Dec | 5.36 | 4.99 | 0.37 |
51.24 | 49.81 | 1.43 |