| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.71 | 0.76 | -0.05 |
| Feb | 0.91 | 0.93 | -0.02 |
| Mar | 1.84 | 1.89 | -0.05 |
| Apr | 2.72 | 2.93 | -0.21 |
| May | 2.80 | 3.18 | -0.38 |
| Jun | 1.88 | 1.87 | 0.01 |
| Jul | 1.84 | 1.81 | 0.03 |
| Aug | 1.73 | 1.67 | 0.06 |
| Sep | 1.53 | 2.06 | -0.53 |
| Oct | 1.37 | 1.54 | -0.17 |
| Nov | 1.06 | 1.07 | -0.01 |
| Dec | 0.71 | 0.75 | -0.04 |
19.10 | 20.46 | -1.36 |