| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.74 | 0.96 | -0.22 |
| Feb | 0.78 | 0.90 | -0.12 |
| Mar | 1.59 | 1.70 | -0.11 |
| Apr | 2.90 | 3.07 | -0.17 |
| May | 4.16 | 4.20 | -0.04 |
| Jun | 4.59 | 4.61 | -0.02 |
| Jul | 4.18 | 4.31 | -0.13 |
| Aug | 4.47 | 4.37 | 0.10 |
| Sep | 3.31 | 3.31 | 0.00 |
| Oct | 2.68 | 2.76 | -0.08 |
| Nov | 1.57 | 1.71 | -0.14 |
| Dec | 1.04 | 1.29 | -0.25 |
32.01 | 33.19 | -1.18 |