| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.70 | 0.71 | -0.01 |
| Feb | 0.79 | 0.83 | -0.04 |
| Mar | 1.46 | 1.53 | -0.07 |
| Apr | 2.84 | 2.99 | -0.15 |
| May | 3.92 | 3.89 | 0.03 |
| Jun | 4.72 | 4.88 | -0.16 |
| Jul | 3.55 | 3.55 | 0.00 |
| Aug | 3.18 | 3.46 | -0.28 |
| Sep | 3.17 | 3.19 | -0.02 |
| Oct | 2.26 | 2.31 | -0.05 |
| Nov | 1.32 | 1.37 | -0.05 |
| Dec | 0.86 | 0.97 | -0.11 |
28.77 | 29.68 | -0.91 |