| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.49 | 3.62 | -0.13 |
| Feb | 2.90 | 2.95 | -0.05 |
| Mar | 4.13 | 4.21 | -0.08 |
| Apr | 3.79 | 3.88 | -0.09 |
| May | 4.07 | 4.04 | 0.03 |
| Jun | 4.41 | 4.57 | -0.16 |
| Jul | 4.92 | 4.89 | 0.03 |
| Aug | 4.47 | 4.52 | -0.05 |
| Sep | 4.26 | 4.40 | -0.14 |
| Oct | 4.27 | 4.28 | -0.01 |
| Nov | 3.39 | 3.45 | -0.06 |
| Dec | 4.36 | 4.42 | -0.06 |
48.46 | 49.23 | -0.77 |