| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.04 | 3.06 | -0.02 |
| Feb | 2.65 | 2.71 | -0.06 |
| Mar | 3.79 | 3.86 | -0.07 |
| Apr | 3.49 | 3.41 | 0.08 |
| May | 4.36 | 4.36 | 0.00 |
| Jun | 4.28 | 4.24 | 0.04 |
| Jul | 4.42 | 4.29 | 0.13 |
| Aug | 3.84 | 3.77 | 0.07 |
| Sep | 4.30 | 4.33 | -0.03 |
| Oct | 3.85 | 3.94 | -0.09 |
| Nov | 3.21 | 3.22 | -0.01 |
| Dec | 3.66 | 3.72 | -0.06 |
44.89 | 44.91 | -0.02 |