| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.69 | 0.71 | -0.02 |
| Feb | 0.71 | 0.72 | -0.01 |
| Mar | 1.31 | 1.35 | -0.04 |
| Apr | 2.21 | 2.36 | -0.15 |
| May | 3.52 | 3.52 | 0.00 |
| Jun | 4.37 | 4.41 | -0.04 |
| Jul | 4.51 | 4.41 | 0.10 |
| Aug | 3.52 | 3.30 | 0.22 |
| Sep | 2.99 | 2.93 | 0.06 |
| Oct | 2.80 | 2.66 | 0.14 |
| Nov | 1.36 | 1.34 | 0.02 |
| Dec | 0.95 | 0.97 | -0.02 |
28.94 | 28.68 | 0.26 |