| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.06 | 2.09 | -0.03 |
| Feb | 1.73 | 1.82 | -0.09 |
| Mar | 2.33 | 2.29 | 0.04 |
| Apr | 3.68 | 3.63 | 0.05 |
| May | 4.67 | 4.52 | 0.15 |
| Jun | 4.36 | 4.52 | -0.16 |
| Jul | 4.06 | 4.11 | -0.05 |
| Aug | 3.86 | 3.71 | 0.15 |
| Sep | 3.29 | 3.23 | 0.06 |
| Oct | 3.16 | 3.09 | 0.07 |
| Nov | 2.51 | 2.46 | 0.05 |
| Dec | 2.03 | 2.05 | -0.02 |
37.74 | 37.52 | 0.22 |