| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.50 | 3.61 | -0.11 |
| Feb | 2.85 | 2.87 | -0.02 |
| Mar | 4.18 | 4.15 | 0.03 |
| Apr | 3.68 | 3.66 | 0.02 |
| May | 3.65 | 3.73 | -0.08 |
| Jun | 4.39 | 4.34 | 0.05 |
| Jul | 4.65 | 4.74 | -0.09 |
| Aug | 4.62 | 4.55 | 0.07 |
| Sep | 4.77 | 5.35 | -0.58 |
| Oct | 3.45 | 3.51 | -0.06 |
| Nov | 3.36 | 3.37 | -0.01 |
| Dec | 3.56 | 3.63 | -0.07 |
46.66 | 47.51 | -0.85 |