| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.62 | 3.59 | 0.03 |
| Feb | 3.90 | 4.07 | -0.17 |
| Mar | 5.10 | 5.00 | 0.10 |
| Apr | 5.38 | 5.38 | 0.00 |
| May | 5.49 | 5.33 | 0.16 |
| Jun | 3.49 | 3.46 | 0.03 |
| Jul | 3.73 | 3.41 | 0.32 |
| Aug | 3.72 | 3.50 | 0.22 |
| Sep | 3.49 | 3.04 | 0.45 |
| Oct | 4.08 | 3.74 | 0.34 |
| Nov | 4.89 | 4.72 | 0.17 |
| Dec | 4.71 | 4.79 | -0.08 |
51.60 | 50.03 | 1.57 |