| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.77 | 0.85 | -0.08 |
| Feb | 0.72 | 0.74 | -0.02 |
| Mar | 1.17 | 1.16 | 0.01 |
| Apr | 1.89 | 1.95 | -0.06 |
| May | 3.01 | 3.10 | -0.09 |
| Jun | 4.46 | 4.43 | 0.03 |
| Jul | 3.93 | 4.09 | -0.16 |
| Aug | 3.25 | 3.36 | -0.11 |
| Sep | 2.94 | 3.13 | -0.19 |
| Oct | 2.63 | 2.66 | -0.03 |
| Nov | 1.34 | 1.40 | -0.06 |
| Dec | 0.99 | 1.06 | -0.07 |
27.10 | 27.93 | -0.83 |