| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.71 | 2.74 | -0.03 |
| Feb | 2.45 | 2.52 | -0.07 |
| Mar | 4.09 | 4.05 | 0.04 |
| Apr | 4.85 | 5.04 | -0.19 |
| May | 5.75 | 5.92 | -0.17 |
| Jun | 4.32 | 4.40 | -0.08 |
| Jul | 4.07 | 3.92 | 0.15 |
| Aug | 3.60 | 3.51 | 0.09 |
| Sep | 4.21 | 4.24 | -0.03 |
| Oct | 4.29 | 4.24 | 0.05 |
| Nov | 4.00 | 4.02 | -0.02 |
| Dec | 3.22 | 3.17 | 0.05 |
47.56 | 47.77 | -0.21 |