| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.70 | 3.76 | -0.06 |
| Feb | 3.73 | 3.87 | -0.14 |
| Mar | 4.00 | 4.02 | -0.02 |
| Apr | 4.06 | 4.07 | -0.01 |
| May | 4.39 | 4.43 | -0.04 |
| Jun | 4.22 | 4.27 | -0.05 |
| Jul | 5.09 | 5.48 | -0.39 |
| Aug | 4.12 | 4.69 | -0.57 |
| Sep | 3.08 | 3.17 | -0.09 |
| Oct | 2.92 | 2.67 | 0.25 |
| Nov | 3.15 | 2.91 | 0.24 |
| Dec | 3.84 | 3.97 | -0.13 |
46.30 | 47.31 | -1.01 |