| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.71 | 0.94 | -0.23 |
| Feb | 0.76 | 0.89 | -0.13 |
| Mar | 1.53 | 1.69 | -0.16 |
| Apr | 2.87 | 3.09 | -0.22 |
| May | 4.12 | 4.33 | -0.21 |
| Jun | 4.45 | 4.62 | -0.17 |
| Jul | 4.19 | 4.25 | -0.06 |
| Aug | 4.24 | 4.21 | 0.03 |
| Sep | 3.25 | 3.31 | -0.06 |
| Oct | 2.77 | 2.75 | 0.02 |
| Nov | 1.53 | 1.69 | -0.16 |
| Dec | 1.00 | 1.30 | -0.30 |
31.42 | 33.07 | -1.65 |