| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.16 | 4.24 | -0.08 |
| Feb | 3.64 | 3.70 | -0.06 |
| Mar | 4.61 | 4.58 | 0.03 |
| Apr | 3.92 | 3.88 | 0.04 |
| May | 3.70 | 3.69 | 0.01 |
| Jun | 4.26 | 4.10 | 0.16 |
| Jul | 3.75 | 3.86 | -0.11 |
| Aug | 4.34 | 4.38 | -0.04 |
| Sep | 3.78 | 3.79 | -0.01 |
| Oct | 3.39 | 3.39 | 0.00 |
| Nov | 3.61 | 3.71 | -0.10 |
| Dec | 4.31 | 4.47 | -0.16 |
47.47 | 47.79 | -0.32 |