| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.56 | 0.65 | -0.09 |
| Feb | 0.50 | 0.51 | -0.01 |
| Mar | 1.17 | 1.23 | -0.06 |
| Apr | 1.64 | 1.86 | -0.22 |
| May | 2.35 | 2.60 | -0.25 |
| Jun | 2.86 | 2.79 | 0.07 |
| Jul | 2.53 | 2.53 | 0.00 |
| Aug | 2.87 | 3.21 | -0.34 |
| Sep | 1.65 | 1.72 | -0.07 |
| Oct | 1.78 | 1.76 | 0.02 |
| Nov | 0.72 | 0.79 | -0.07 |
| Dec | 0.72 | 0.76 | -0.04 |
19.35 | 20.41 | -1.06 |