| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.72 | 0.84 | -0.12 |
| Feb | 0.79 | 0.88 | -0.09 |
| Mar | 1.51 | 1.59 | -0.08 |
| Apr | 2.83 | 2.97 | -0.14 |
| May | 4.14 | 4.32 | -0.18 |
| Jun | 4.36 | 4.47 | -0.11 |
| Jul | 4.18 | 4.19 | -0.01 |
| Aug | 4.15 | 4.19 | -0.04 |
| Sep | 3.17 | 3.21 | -0.04 |
| Oct | 2.79 | 2.70 | 0.09 |
| Nov | 1.56 | 1.63 | -0.07 |
| Dec | 1.03 | 1.21 | -0.18 |
31.23 | 32.20 | -0.97 |