| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.02 | 4.06 | -0.04 |
| Feb | 3.17 | 3.16 | 0.01 |
| Mar | 3.49 | 3.57 | -0.08 |
| Apr | 3.72 | 3.66 | 0.06 |
| May | 4.90 | 5.02 | -0.12 |
| Jun | 4.75 | 4.61 | 0.14 |
| Jul | 3.13 | 3.01 | 0.12 |
| Aug | 3.71 | 3.94 | -0.23 |
| Sep | 3.87 | 4.02 | -0.15 |
| Oct | 5.01 | 4.92 | 0.09 |
| Nov | 4.50 | 4.51 | -0.01 |
| Dec | 4.11 | 4.14 | -0.03 |
48.38 | 48.62 | -0.24 |