| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.56 | 0.61 | -0.05 |
| Feb | 0.76 | 0.78 | -0.02 |
| Mar | 1.41 | 1.42 | -0.01 |
| Apr | 2.77 | 2.90 | -0.13 |
| May | 3.67 | 3.71 | -0.04 |
| Jun | 4.53 | 4.46 | 0.07 |
| Jul | 3.42 | 3.41 | 0.01 |
| Aug | 3.37 | 3.40 | -0.03 |
| Sep | 2.96 | 2.99 | -0.03 |
| Oct | 2.20 | 2.21 | -0.01 |
| Nov | 1.13 | 1.20 | -0.07 |
| Dec | 0.80 | 0.87 | -0.07 |
27.58 | 27.96 | -0.38 |