| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.88 | 0.90 | -0.02 |
| Feb | 1.25 | 1.27 | -0.02 |
| Mar | 2.19 | 2.28 | -0.09 |
| Apr | 3.65 | 3.67 | -0.02 |
| May | 4.97 | 5.12 | -0.15 |
| Jun | 4.73 | 5.24 | -0.51 |
| Jul | 5.17 | 4.82 | 0.35 |
| Aug | 4.01 | 3.80 | 0.21 |
| Sep | 3.65 | 3.70 | -0.05 |
| Oct | 3.01 | 3.09 | -0.08 |
| Nov | 1.96 | 1.83 | 0.13 |
| Dec | 1.47 | 1.46 | 0.01 |
36.94 | 37.18 | -0.24 |