| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.77 | 0.80 | -0.03 |
| Feb | 0.72 | 0.71 | 0.01 |
| Mar | 1.22 | 1.19 | 0.03 |
| Apr | 1.96 | 1.99 | -0.03 |
| May | 3.07 | 3.13 | -0.06 |
| Jun | 4.45 | 4.37 | 0.08 |
| Jul | 4.02 | 4.12 | -0.10 |
| Aug | 3.22 | 3.35 | -0.13 |
| Sep | 3.00 | 3.16 | -0.16 |
| Oct | 2.68 | 2.65 | 0.03 |
| Nov | 1.34 | 1.37 | -0.03 |
| Dec | 0.98 | 1.05 | -0.07 |
27.43 | 27.89 | -0.46 |