| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.40 | 4.71 | -0.31 |
| Feb | 4.08 | 4.20 | -0.12 |
| Mar | 4.73 | 4.76 | -0.03 |
| Apr | 3.98 | 4.28 | -0.30 |
| May | 4.08 | 4.11 | -0.03 |
| Jun | 4.51 | 4.47 | 0.04 |
| Jul | 4.30 | 4.62 | -0.32 |
| Aug | 4.70 | 5.06 | -0.36 |
| Sep | 4.02 | 4.13 | -0.11 |
| Oct | 3.64 | 3.81 | -0.17 |
| Nov | 3.84 | 4.09 | -0.25 |
| Dec | 4.84 | 5.12 | -0.28 |
51.12 | 53.36 | -2.24 |