| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.83 | 0.95 | -0.12 |
| Feb | 0.82 | 0.96 | -0.14 |
| Mar | 1.63 | 1.76 | -0.13 |
| Apr | 2.89 | 3.02 | -0.13 |
| May | 4.04 | 4.31 | -0.27 |
| Jun | 4.79 | 5.01 | -0.22 |
| Jul | 4.12 | 4.33 | -0.21 |
| Aug | 4.50 | 4.54 | -0.04 |
| Sep | 3.31 | 3.37 | -0.06 |
| Oct | 2.58 | 2.69 | -0.11 |
| Nov | 1.53 | 1.68 | -0.15 |
| Dec | 1.15 | 1.30 | -0.15 |
32.19 | 33.92 | -1.73 |