| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.66 | 3.87 | -0.21 |
| Feb | 3.09 | 3.50 | -0.41 |
| Mar | 4.22 | 4.64 | -0.42 |
| Apr | 4.32 | 4.59 | -0.27 |
| May | 3.56 | 3.80 | -0.24 |
| Jun | 4.20 | 4.20 | 0.00 |
| Jul | 3.58 | 3.64 | -0.06 |
| Aug | 3.85 | 4.22 | -0.37 |
| Sep | 4.16 | 4.52 | -0.36 |
| Oct | 4.50 | 4.73 | -0.23 |
| Nov | 3.89 | 3.94 | -0.05 |
| Dec | 4.33 | 4.79 | -0.46 |
47.36 | 50.44 | -3.08 |