| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.65 | 0.64 | 0.01 |
| Feb | 0.66 | 0.68 | -0.02 |
| Mar | 1.23 | 1.27 | -0.04 |
| Apr | 2.18 | 2.25 | -0.07 |
| May | 3.34 | 3.41 | -0.07 |
| Jun | 4.18 | 4.19 | -0.01 |
| Jul | 4.32 | 4.34 | -0.02 |
| Aug | 3.39 | 3.27 | 0.12 |
| Sep | 2.91 | 2.84 | 0.07 |
| Oct | 2.63 | 2.69 | -0.06 |
| Nov | 1.21 | 1.19 | 0.02 |
| Dec | 0.88 | 0.90 | -0.02 |
27.58 | 27.67 | -0.09 |