| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.65 | 0.64 | 0.01 |
| Feb | 0.74 | 0.78 | -0.04 |
| Mar | 1.46 | 1.45 | 0.01 |
| Apr | 2.43 | 2.46 | -0.03 |
| May | 4.47 | 4.55 | -0.08 |
| Jun | 4.01 | 3.89 | 0.12 |
| Jul | 4.01 | 4.06 | -0.05 |
| Aug | 3.41 | 3.43 | -0.02 |
| Sep | 2.35 | 2.34 | 0.01 |
| Oct | 2.12 | 2.10 | 0.02 |
| Nov | 1.22 | 1.23 | -0.01 |
| Dec | 0.89 | 0.90 | -0.01 |
27.76 | 27.83 | -0.07 |