| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.49 | 3.67 | -0.18 |
| Feb | 3.40 | 3.55 | -0.15 |
| Mar | 4.49 | 4.65 | -0.16 |
| Apr | 4.18 | 4.32 | -0.14 |
| May | 3.82 | 4.00 | -0.18 |
| Jun | 4.15 | 4.34 | -0.19 |
| Jul | 3.53 | 3.54 | -0.01 |
| Aug | 3.39 | 3.48 | -0.09 |
| Sep | 3.75 | 3.91 | -0.16 |
| Oct | 4.83 | 4.92 | -0.09 |
| Nov | 3.92 | 3.89 | 0.03 |
| Dec | 4.60 | 4.76 | -0.16 |
47.55 | 49.03 | -1.48 |