| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.02 | 4.04 | -0.02 |
| Feb | 3.54 | 3.49 | 0.05 |
| Mar | 4.87 | 4.95 | -0.08 |
| Apr | 4.48 | 4.58 | -0.10 |
| May | 3.52 | 3.47 | 0.05 |
| Jun | 4.02 | 4.10 | -0.08 |
| Jul | 3.36 | 3.40 | -0.04 |
| Aug | 3.91 | 3.91 | 0.00 |
| Sep | 4.13 | 4.10 | 0.03 |
| Oct | 4.76 | 4.78 | -0.02 |
| Nov | 4.27 | 4.18 | 0.09 |
| Dec | 4.89 | 4.95 | -0.06 |
49.77 | 49.95 | -0.18 |