| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.67 | 0.71 | -0.04 |
| Feb | 0.75 | 0.85 | -0.10 |
| Mar | 1.35 | 1.50 | -0.15 |
| Apr | 2.72 | 2.83 | -0.11 |
| May | 3.81 | 3.66 | 0.15 |
| Jun | 4.61 | 4.83 | -0.22 |
| Jul | 3.50 | 3.50 | 0.00 |
| Aug | 2.97 | 3.42 | -0.45 |
| Sep | 3.09 | 3.00 | 0.09 |
| Oct | 2.11 | 2.28 | -0.17 |
| Nov | 1.23 | 1.43 | -0.20 |
| Dec | 0.78 | 1.01 | -0.23 |
27.59 | 29.02 | -1.43 |