| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.09 | 4.32 | -0.23 |
| Feb | 3.67 | 3.55 | 0.12 |
| Mar | 3.88 | 3.70 | 0.18 |
| Apr | 3.71 | 3.67 | 0.04 |
| May | 4.69 | 4.40 | 0.29 |
| Jun | 4.52 | 4.76 | -0.24 |
| Jul | 2.72 | 2.78 | -0.06 |
| Aug | 3.27 | 3.65 | -0.38 |
| Sep | 3.62 | 3.50 | 0.12 |
| Oct | 4.26 | 4.23 | 0.03 |
| Nov | 4.18 | 3.62 | 0.56 |
| Dec | 4.39 | 4.37 | 0.02 |
47.00 | 46.55 | 0.45 |