| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.65 | 0.71 | -0.06 |
| Feb | 0.74 | 0.81 | -0.07 |
| Mar | 1.46 | 1.51 | -0.05 |
| Apr | 2.43 | 2.71 | -0.28 |
| May | 3.58 | 3.92 | -0.34 |
| Jun | 4.48 | 4.57 | -0.09 |
| Jul | 3.67 | 3.58 | 0.09 |
| Aug | 3.88 | 4.19 | -0.31 |
| Sep | 2.98 | 3.20 | -0.22 |
| Oct | 2.19 | 2.36 | -0.17 |
| Nov | 1.31 | 1.36 | -0.05 |
| Dec | 0.87 | 1.00 | -0.13 |
28.24 | 29.92 | -1.68 |