| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.71 | 0.68 | 0.03 |
| Feb | 0.77 | 0.78 | -0.01 |
| Mar | 1.40 | 1.44 | -0.04 |
| Apr | 2.39 | 2.48 | -0.09 |
| May | 3.49 | 3.47 | 0.02 |
| Jun | 4.37 | 4.42 | -0.05 |
| Jul | 4.19 | 4.14 | 0.05 |
| Aug | 3.63 | 3.79 | -0.16 |
| Sep | 2.89 | 2.89 | 0.00 |
| Oct | 2.68 | 2.71 | -0.03 |
| Nov | 1.31 | 1.30 | 0.01 |
| Dec | 0.88 | 0.94 | -0.06 |
28.71 | 29.04 | -0.33 |