| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.71 | 0.71 | 0.00 |
| Feb | 0.91 | 0.86 | 0.05 |
| Mar | 1.84 | 1.83 | 0.01 |
| Apr | 2.72 | 2.85 | -0.13 |
| May | 2.80 | 3.09 | -0.29 |
| Jun | 1.88 | 1.90 | -0.02 |
| Jul | 1.84 | 1.80 | 0.04 |
| Aug | 1.73 | 1.72 | 0.01 |
| Sep | 1.53 | 2.07 | -0.54 |
| Oct | 1.37 | 1.51 | -0.14 |
| Nov | 1.06 | 1.05 | 0.01 |
| Dec | 0.71 | 0.75 | -0.04 |
19.10 | 20.14 | -1.04 |