| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.77 | 0.82 | -0.05 |
| Feb | 0.71 | 0.72 | -0.01 |
| Mar | 1.20 | 1.16 | 0.04 |
| Apr | 1.93 | 1.94 | -0.01 |
| May | 3.03 | 3.09 | -0.06 |
| Jun | 4.44 | 4.40 | 0.04 |
| Jul | 3.97 | 4.10 | -0.13 |
| Aug | 3.21 | 3.34 | -0.13 |
| Sep | 2.96 | 3.15 | -0.19 |
| Oct | 2.65 | 2.62 | 0.03 |
| Nov | 1.33 | 1.37 | -0.04 |
| Dec | 0.97 | 1.04 | -0.07 |
27.17 | 27.75 | -0.58 |