| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.37 | 0.32 | 0.05 |
| Feb | 0.54 | 0.49 | 0.05 |
| Mar | 1.00 | 0.99 | 0.01 |
| Apr | 2.23 | 2.22 | 0.01 |
| May | 3.33 | 3.49 | -0.16 |
| Jun | 3.64 | 3.65 | -0.01 |
| Jul | 3.07 | 3.05 | 0.02 |
| Aug | 2.57 | 2.51 | 0.06 |
| Sep | 1.72 | 1.65 | 0.07 |
| Oct | 1.71 | 1.76 | -0.05 |
| Nov | 0.55 | 0.52 | 0.03 |
| Dec | 0.40 | 0.42 | -0.02 |
21.13 | 21.07 | 0.06 |