| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.68 | 0.66 | 0.02 |
| Feb | 0.67 | 0.71 | -0.04 |
| Mar | 1.28 | 1.19 | 0.09 |
| Apr | 2.25 | 2.19 | 0.06 |
| May | 3.35 | 3.41 | -0.06 |
| Jun | 4.26 | 4.28 | -0.02 |
| Jul | 4.32 | 4.19 | 0.13 |
| Aug | 3.47 | 3.27 | 0.20 |
| Sep | 2.95 | 2.87 | 0.08 |
| Oct | 2.65 | 2.65 | 0.00 |
| Nov | 1.19 | 1.09 | 0.10 |
| Dec | 0.87 | 0.90 | -0.03 |
27.94 | 27.41 | 0.53 |