| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.69 | 0.71 | -0.02 |
| Feb | 0.82 | 0.83 | -0.01 |
| Mar | 1.55 | 1.53 | 0.02 |
| Apr | 3.03 | 3.13 | -0.10 |
| May | 4.17 | 4.23 | -0.06 |
| Jun | 4.87 | 5.04 | -0.17 |
| Jul | 3.63 | 3.57 | 0.06 |
| Aug | 3.53 | 3.68 | -0.15 |
| Sep | 3.16 | 3.14 | 0.02 |
| Oct | 2.45 | 2.36 | 0.09 |
| Nov | 1.36 | 1.34 | 0.02 |
| Dec | 0.88 | 0.93 | -0.05 |
30.14 | 30.49 | -0.35 |