| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.97 | 4.16 | -0.19 |
| Feb | 3.50 | 3.60 | -0.10 |
| Mar | 4.85 | 5.07 | -0.22 |
| Apr | 4.37 | 4.70 | -0.33 |
| May | 3.49 | 3.44 | 0.05 |
| Jun | 3.95 | 4.12 | -0.17 |
| Jul | 3.24 | 3.28 | -0.04 |
| Aug | 3.69 | 3.77 | -0.08 |
| Sep | 3.98 | 4.08 | -0.10 |
| Oct | 4.56 | 4.70 | -0.14 |
| Nov | 4.21 | 4.23 | -0.02 |
| Dec | 4.78 | 4.97 | -0.19 |
48.59 | 50.12 | -1.53 |