| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.69 | 0.73 | -0.04 |
| Feb | 0.79 | 0.83 | -0.04 |
| Mar | 1.44 | 1.45 | -0.01 |
| Apr | 2.72 | 2.75 | -0.03 |
| May | 3.90 | 4.03 | -0.13 |
| Jun | 4.49 | 4.41 | 0.08 |
| Jul | 3.84 | 3.86 | -0.02 |
| Aug | 3.98 | 4.19 | -0.21 |
| Sep | 3.22 | 3.19 | 0.03 |
| Oct | 2.50 | 2.55 | -0.05 |
| Nov | 1.41 | 1.42 | -0.01 |
| Dec | 0.97 | 1.05 | -0.08 |
29.95 | 30.46 | -0.51 |