| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.47 | 0.48 | -0.01 |
| Feb | 0.65 | 0.68 | -0.03 |
| Mar | 1.19 | 1.27 | -0.08 |
| Apr | 1.88 | 1.99 | -0.11 |
| May | 3.42 | 3.55 | -0.13 |
| Jun | 2.93 | 2.94 | -0.01 |
| Jul | 3.46 | 3.63 | -0.17 |
| Aug | 2.97 | 3.08 | -0.11 |
| Sep | 1.74 | 1.82 | -0.08 |
| Oct | 1.63 | 1.64 | -0.01 |
| Nov | 0.76 | 0.76 | 0.00 |
| Dec | 0.67 | 0.72 | -0.05 |
21.77 | 22.56 | -0.79 |