| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.49 | 0.51 | -0.02 |
| Feb | 0.67 | 0.68 | -0.01 |
| Mar | 1.39 | 1.36 | 0.03 |
| Apr | 2.98 | 2.99 | -0.01 |
| May | 4.02 | 3.99 | 0.03 |
| Jun | 4.02 | 3.93 | 0.09 |
| Jul | 3.36 | 3.26 | 0.10 |
| Aug | 3.04 | 3.16 | -0.12 |
| Sep | 2.16 | 2.16 | 0.00 |
| Oct | 2.04 | 2.06 | -0.02 |
| Nov | 0.96 | 0.97 | -0.01 |
| Dec | 0.66 | 0.70 | -0.04 |
25.79 | 25.77 | 0.02 |