| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.71 | 0.73 | -0.02 |
| Feb | 0.91 | 0.90 | 0.01 |
| Mar | 1.84 | 1.83 | 0.01 |
| Apr | 2.72 | 2.72 | 0.00 |
| May | 2.80 | 3.05 | -0.25 |
| Jun | 1.88 | 1.91 | -0.03 |
| Jul | 1.84 | 1.72 | 0.12 |
| Aug | 1.73 | 1.64 | 0.09 |
| Sep | 1.53 | 2.03 | -0.50 |
| Oct | 1.37 | 1.52 | -0.15 |
| Nov | 1.06 | 1.05 | 0.01 |
| Dec | 0.71 | 0.74 | -0.03 |
19.10 | 19.84 | -0.74 |