| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.73 | 0.91 | -0.18 |
| Feb | 0.78 | 0.86 | -0.08 |
| Mar | 1.55 | 1.64 | -0.09 |
| Apr | 2.87 | 3.06 | -0.19 |
| May | 4.14 | 4.39 | -0.25 |
| Jun | 4.43 | 4.57 | -0.14 |
| Jul | 4.22 | 4.20 | 0.02 |
| Aug | 4.24 | 4.20 | 0.04 |
| Sep | 3.24 | 3.32 | -0.08 |
| Oct | 2.83 | 2.74 | 0.09 |
| Nov | 1.56 | 1.65 | -0.09 |
| Dec | 1.03 | 1.28 | -0.25 |
31.62 | 32.82 | -1.20 |