| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.41 | 0.41 | 0.00 |
| Feb | 0.50 | 0.51 | -0.01 |
| Mar | 0.90 | 0.96 | -0.06 |
| Apr | 1.92 | 2.04 | -0.12 |
| May | 2.78 | 2.93 | -0.15 |
| Jun | 2.93 | 3.00 | -0.07 |
| Jul | 3.25 | 3.17 | 0.08 |
| Aug | 2.87 | 2.83 | 0.04 |
| Sep | 1.44 | 1.44 | 0.00 |
| Oct | 1.46 | 1.50 | -0.04 |
| Nov | 0.63 | 0.66 | -0.03 |
| Dec | 0.49 | 0.50 | -0.01 |
19.58 | 19.95 | -0.37 |