| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.68 | 4.25 | -0.57 |
| Feb | 3.38 | 3.86 | -0.48 |
| Mar | 3.00 | 3.07 | -0.07 |
| Apr | 1.34 | 1.41 | -0.07 |
| May | 0.48 | 0.57 | -0.09 |
| Jun | 0.11 | 0.16 | -0.05 |
| Jul | 0.02 | 0.04 | -0.02 |
| Aug | 0.03 | 0.05 | -0.02 |
| Sep | 0.07 | 0.08 | -0.01 |
| Oct | 0.81 | 0.78 | 0.03 |
| Nov | 1.73 | 1.74 | -0.01 |
| Dec | 3.33 | 3.61 | -0.28 |
17.98 | 19.62 | -1.64 |