| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.12 | 3.36 | -0.24 |
| Feb | 2.87 | 3.00 | -0.13 |
| Mar | 3.80 | 3.97 | -0.17 |
| Apr | 4.39 | 4.54 | -0.15 |
| May | 4.76 | 4.94 | -0.18 |
| Jun | 4.62 | 4.57 | 0.05 |
| Jul | 4.22 | 4.34 | -0.12 |
| Aug | 3.40 | 3.38 | 0.02 |
| Sep | 3.06 | 3.21 | -0.15 |
| Oct | 3.13 | 3.21 | -0.08 |
| Nov | 3.00 | 3.17 | -0.17 |
| Dec | 3.39 | 3.62 | -0.23 |
43.76 | 45.31 | -1.55 |