| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.48 | 0.52 | -0.04 |
| Feb | 0.68 | 0.72 | -0.04 |
| Mar | 1.21 | 1.28 | -0.07 |
| Apr | 1.91 | 2.00 | -0.09 |
| May | 3.47 | 3.67 | -0.20 |
| Jun | 2.91 | 3.04 | -0.13 |
| Jul | 3.48 | 3.72 | -0.24 |
| Aug | 2.95 | 3.14 | -0.19 |
| Sep | 1.68 | 1.90 | -0.22 |
| Oct | 1.58 | 1.64 | -0.06 |
| Nov | 0.79 | 0.82 | -0.03 |
| Dec | 0.68 | 0.78 | -0.10 |
21.82 | 23.23 | -1.41 |