| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.54 | 3.28 | 0.26 |
| Feb | 3.01 | 2.84 | 0.17 |
| Mar | 3.81 | 3.60 | 0.21 |
| Apr | 3.74 | 3.47 | 0.27 |
| May | 3.79 | 3.65 | 0.14 |
| Jun | 4.05 | 4.09 | -0.04 |
| Jul | 4.61 | 4.57 | 0.04 |
| Aug | 4.04 | 4.13 | -0.09 |
| Sep | 3.71 | 3.61 | 0.10 |
| Oct | 3.04 | 2.70 | 0.34 |
| Nov | 3.14 | 3.07 | 0.07 |
| Dec | 3.55 | 3.25 | 0.30 |
44.03 | 42.26 | 1.77 |