| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.61 | 1.72 | -0.11 |
| Feb | 1.58 | 1.70 | -0.12 |
| Mar | 1.72 | 1.77 | -0.05 |
| Apr | 1.96 | 1.83 | 0.13 |
| May | 1.78 | 1.76 | 0.02 |
| Jun | 1.01 | 0.99 | 0.02 |
| Jul | 1.62 | 1.55 | 0.07 |
| Aug | 1.65 | 1.50 | 0.15 |
| Sep | 1.90 | 2.03 | -0.13 |
| Oct | 1.83 | 1.89 | -0.06 |
| Nov | 1.59 | 1.58 | 0.01 |
| Dec | 1.49 | 1.73 | -0.24 |
19.74 | 20.05 | -0.31 |