| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.72 | 0.70 | 0.02 |
| Feb | 0.79 | 0.77 | 0.02 |
| Mar | 1.44 | 1.44 | 0.00 |
| Apr | 2.61 | 2.62 | -0.01 |
| May | 3.43 | 3.42 | 0.01 |
| Jun | 4.42 | 4.49 | -0.07 |
| Jul | 4.10 | 4.05 | 0.05 |
| Aug | 3.80 | 3.78 | 0.02 |
| Sep | 2.93 | 2.96 | -0.03 |
| Oct | 2.49 | 2.51 | -0.02 |
| Nov | 1.33 | 1.29 | 0.04 |
| Dec | 0.89 | 0.91 | -0.02 |
28.95 | 28.94 | 0.01 |