| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.67 | 0.71 | -0.04 |
| Feb | 0.77 | 0.84 | -0.07 |
| Mar | 1.45 | 1.50 | -0.05 |
| Apr | 2.51 | 2.67 | -0.16 |
| May | 3.67 | 3.96 | -0.29 |
| Jun | 4.39 | 4.45 | -0.06 |
| Jul | 3.63 | 3.65 | -0.02 |
| Aug | 3.86 | 4.06 | -0.20 |
| Sep | 3.03 | 3.15 | -0.12 |
| Oct | 2.26 | 2.44 | -0.18 |
| Nov | 1.35 | 1.40 | -0.05 |
| Dec | 0.89 | 1.01 | -0.12 |
28.48 | 29.84 | -1.36 |