| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.25 | 3.41 | -0.16 |
| Feb | 2.75 | 2.78 | -0.03 |
| Mar | 3.47 | 3.55 | -0.08 |
| Apr | 3.65 | 3.75 | -0.10 |
| May | 4.18 | 4.33 | -0.15 |
| Jun | 4.57 | 4.59 | -0.02 |
| Jul | 4.25 | 4.55 | -0.30 |
| Aug | 3.94 | 4.13 | -0.19 |
| Sep | 3.61 | 3.77 | -0.16 |
| Oct | 3.19 | 3.26 | -0.07 |
| Nov | 3.30 | 3.32 | -0.02 |
| Dec | 3.30 | 3.42 | -0.12 |
43.46 | 44.86 | -1.40 |