| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.41 | 0.43 | -0.02 |
| Feb | 0.40 | 0.47 | -0.07 |
| Mar | 0.69 | 0.72 | -0.03 |
| Apr | 1.25 | 1.32 | -0.07 |
| May | 2.81 | 2.71 | 0.10 |
| Jun | 3.18 | 3.41 | -0.23 |
| Jul | 2.58 | 2.78 | -0.20 |
| Aug | 2.04 | 1.97 | 0.07 |
| Sep | 1.76 | 1.86 | -0.10 |
| Oct | 1.33 | 1.37 | -0.04 |
| Nov | 0.59 | 0.61 | -0.02 |
| Dec | 0.49 | 0.49 | 0.00 |
17.53 | 18.14 | -0.61 |