| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.73 | 3.85 | -0.12 |
| Feb | 3.66 | 3.86 | -0.20 |
| Mar | 4.66 | 4.82 | -0.16 |
| Apr | 4.53 | 4.76 | -0.23 |
| May | 4.94 | 5.21 | -0.27 |
| Jun | 4.63 | 5.05 | -0.42 |
| Jul | 4.79 | 5.09 | -0.30 |
| Aug | 3.61 | 3.45 | 0.16 |
| Sep | 3.90 | 3.73 | 0.17 |
| Oct | 3.41 | 3.32 | 0.09 |
| Nov | 3.18 | 3.27 | -0.09 |
| Dec | 4.18 | 4.36 | -0.18 |
49.22 | 50.77 | -1.55 |