| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.67 | 0.91 | -0.24 |
| Feb | 0.84 | 0.92 | -0.08 |
| Mar | 1.51 | 1.63 | -0.12 |
| Apr | 2.82 | 2.81 | 0.01 |
| May | 3.90 | 4.20 | -0.30 |
| Jun | 4.73 | 5.11 | -0.38 |
| Jul | 3.80 | 3.81 | -0.01 |
| Aug | 3.69 | 4.02 | -0.33 |
| Sep | 3.14 | 3.18 | -0.04 |
| Oct | 2.28 | 2.33 | -0.05 |
| Nov | 1.41 | 1.45 | -0.04 |
| Dec | 1.04 | 1.18 | -0.14 |
29.83 | 31.55 | -1.72 |