| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.47 | 0.49 | -0.02 |
| Feb | 0.67 | 0.68 | -0.01 |
| Mar | 1.22 | 1.29 | -0.07 |
| Apr | 1.88 | 1.94 | -0.06 |
| May | 3.37 | 3.45 | -0.08 |
| Jun | 2.96 | 2.92 | 0.04 |
| Jul | 3.43 | 3.62 | -0.19 |
| Aug | 2.89 | 3.02 | -0.13 |
| Sep | 1.68 | 1.80 | -0.12 |
| Oct | 1.58 | 1.60 | -0.02 |
| Nov | 0.74 | 0.75 | -0.01 |
| Dec | 0.69 | 0.76 | -0.07 |
21.58 | 22.32 | -0.74 |