| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.03 | 4.10 | -0.07 |
| Feb | 3.95 | 3.96 | -0.01 |
| Mar | 4.46 | 4.52 | -0.06 |
| Apr | 3.13 | 3.25 | -0.12 |
| May | 3.36 | 3.22 | 0.14 |
| Jun | 4.29 | 4.27 | 0.02 |
| Jul | 3.87 | 3.92 | -0.05 |
| Aug | 4.27 | 4.19 | 0.08 |
| Sep | 3.58 | 3.60 | -0.02 |
| Oct | 3.16 | 3.12 | 0.04 |
| Nov | 3.60 | 3.62 | -0.02 |
| Dec | 4.57 | 4.47 | 0.10 |
46.27 | 46.24 | 0.03 |