| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.48 | 0.51 | -0.03 |
| Feb | 0.71 | 0.73 | -0.02 |
| Mar | 1.23 | 1.33 | -0.10 |
| Apr | 1.90 | 2.00 | -0.10 |
| May | 3.44 | 3.62 | -0.18 |
| Jun | 3.04 | 3.12 | -0.08 |
| Jul | 3.57 | 3.72 | -0.15 |
| Aug | 2.90 | 3.05 | -0.15 |
| Sep | 1.64 | 1.86 | -0.22 |
| Oct | 1.57 | 1.63 | -0.06 |
| Nov | 0.78 | 0.83 | -0.05 |
| Dec | 0.72 | 0.83 | -0.11 |
21.98 | 23.23 | -1.25 |