| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.80 | 0.85 | -0.05 |
| Feb | 0.72 | 0.75 | -0.03 |
| Mar | 1.06 | 1.03 | 0.03 |
| Apr | 1.85 | 1.84 | 0.01 |
| May | 2.94 | 2.94 | 0.00 |
| Jun | 4.22 | 4.21 | 0.01 |
| Jul | 3.81 | 3.84 | -0.03 |
| Aug | 3.43 | 3.24 | 0.19 |
| Sep | 3.54 | 3.46 | 0.08 |
| Oct | 2.55 | 2.65 | -0.10 |
| Nov | 1.44 | 1.43 | 0.01 |
| Dec | 0.97 | 1.10 | -0.13 |
27.33 | 27.34 | -0.01 |