| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.90 | 4.15 | -0.25 |
| Feb | 3.47 | 3.58 | -0.11 |
| Mar | 4.77 | 5.11 | -0.34 |
| Apr | 4.34 | 4.69 | -0.35 |
| May | 3.41 | 3.41 | 0.00 |
| Jun | 3.97 | 4.08 | -0.11 |
| Jul | 3.24 | 3.19 | 0.05 |
| Aug | 3.72 | 3.75 | -0.03 |
| Sep | 4.06 | 4.08 | -0.02 |
| Oct | 4.56 | 4.67 | -0.11 |
| Nov | 4.20 | 4.23 | -0.03 |
| Dec | 4.71 | 4.95 | -0.24 |
48.35 | 49.89 | -1.54 |