| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.17 | 4.20 | -0.03 |
| Feb | 3.70 | 3.74 | -0.04 |
| Mar | 4.54 | 4.65 | -0.11 |
| Apr | 4.09 | 4.16 | -0.07 |
| May | 3.90 | 3.97 | -0.07 |
| Jun | 4.23 | 4.12 | 0.11 |
| Jul | 4.11 | 4.25 | -0.14 |
| Aug | 4.49 | 4.59 | -0.10 |
| Sep | 3.88 | 3.91 | -0.03 |
| Oct | 3.49 | 3.67 | -0.18 |
| Nov | 3.72 | 3.90 | -0.18 |
| Dec | 4.38 | 4.74 | -0.36 |
48.70 | 49.90 | -1.20 |