| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.77 | 4.02 | -0.25 |
| Feb | 3.62 | 3.77 | -0.15 |
| Mar | 2.74 | 2.98 | -0.24 |
| Apr | 1.49 | 1.59 | -0.10 |
| May | 1.03 | 0.87 | 0.16 |
| Jun | 0.20 | 0.21 | -0.01 |
| Jul | 0.01 | 0.00 | 0.01 |
| Aug | 0.02 | 0.03 | -0.01 |
| Sep | 0.08 | 0.11 | -0.03 |
| Oct | 0.88 | 1.02 | -0.14 |
| Nov | 1.77 | 1.83 | -0.06 |
| Dec | 3.24 | 3.62 | -0.38 |
18.85 | 20.05 | -1.20 |