| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.64 | 3.80 | -0.16 |
| Feb | 3.10 | 3.28 | -0.18 |
| Mar | 3.97 | 3.95 | 0.02 |
| Apr | 3.42 | 3.50 | -0.08 |
| May | 3.77 | 3.98 | -0.21 |
| Jun | 4.56 | 4.49 | 0.07 |
| Jul | 5.54 | 5.57 | -0.03 |
| Aug | 5.46 | 5.37 | 0.09 |
| Sep | 5.00 | 4.84 | 0.16 |
| Oct | 3.82 | 3.82 | 0.00 |
| Nov | 3.17 | 3.62 | -0.45 |
| Dec | 3.47 | 3.84 | -0.37 |
48.92 | 50.06 | -1.14 |