| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.77 | 0.81 | -0.04 |
| Feb | 0.72 | 0.71 | 0.01 |
| Mar | 1.22 | 1.19 | 0.03 |
| Apr | 1.96 | 1.98 | -0.02 |
| May | 3.07 | 3.13 | -0.06 |
| Jun | 4.45 | 4.38 | 0.07 |
| Jul | 4.02 | 4.11 | -0.09 |
| Aug | 3.22 | 3.33 | -0.11 |
| Sep | 3.00 | 3.17 | -0.17 |
| Oct | 2.68 | 2.64 | 0.04 |
| Nov | 1.34 | 1.38 | -0.04 |
| Dec | 0.98 | 1.06 | -0.08 |
27.43 | 27.89 | -0.46 |