| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.50 | 0.52 | -0.02 |
| Feb | 0.57 | 0.59 | -0.02 |
| Mar | 1.25 | 1.28 | -0.03 |
| Apr | 2.09 | 2.07 | 0.02 |
| May | 2.60 | 2.84 | -0.24 |
| Jun | 1.76 | 1.71 | 0.05 |
| Jul | 1.67 | 1.57 | 0.10 |
| Aug | 1.45 | 1.23 | 0.22 |
| Sep | 1.37 | 1.31 | 0.06 |
| Oct | 1.16 | 1.17 | -0.01 |
| Nov | 0.79 | 0.75 | 0.04 |
| Dec | 0.48 | 0.56 | -0.08 |
15.69 | 15.60 | 0.09 |