| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.91 | 3.83 | 0.08 |
| Feb | 4.49 | 4.34 | 0.15 |
| Mar | 4.54 | 4.74 | -0.20 |
| Apr | 4.78 | 4.90 | -0.12 |
| May | 5.17 | 5.35 | -0.18 |
| Jun | 4.32 | 4.25 | 0.07 |
| Jul | 4.15 | 4.50 | -0.35 |
| Aug | 3.63 | 3.44 | 0.19 |
| Sep | 3.45 | 3.63 | -0.18 |
| Oct | 3.85 | 3.83 | 0.02 |
| Nov | 3.78 | 3.80 | -0.02 |
| Dec | 4.80 | 4.75 | 0.05 |
50.87 | 51.36 | -0.49 |