| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.04 | 3.13 | -0.09 |
| Feb | 2.51 | 2.48 | 0.03 |
| Mar | 3.21 | 3.30 | -0.09 |
| Apr | 3.66 | 3.66 | 0.00 |
| May | 3.99 | 3.98 | 0.01 |
| Jun | 4.50 | 4.39 | 0.11 |
| Jul | 4.09 | 4.04 | 0.05 |
| Aug | 3.71 | 3.49 | 0.22 |
| Sep | 3.59 | 3.55 | 0.04 |
| Oct | 3.03 | 2.97 | 0.06 |
| Nov | 2.87 | 2.97 | -0.10 |
| Dec | 3.07 | 3.09 | -0.02 |
41.27 | 41.05 | 0.22 |