| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.52 | 3.49 | 0.03 |
| Feb | 2.92 | 2.88 | 0.04 |
| Mar | 4.10 | 4.06 | 0.04 |
| Apr | 3.48 | 3.63 | -0.15 |
| May | 3.77 | 3.83 | -0.06 |
| Jun | 4.47 | 4.25 | 0.22 |
| Jul | 5.04 | 5.28 | -0.24 |
| Aug | 4.80 | 5.07 | -0.27 |
| Sep | 4.57 | 5.01 | -0.44 |
| Oct | 4.08 | 4.38 | -0.30 |
| Nov | 3.02 | 3.06 | -0.04 |
| Dec | 3.65 | 3.70 | -0.05 |
47.42 | 48.64 | -1.22 |