| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.40 | 0.38 | 0.02 |
| Feb | 0.53 | 0.55 | -0.02 |
| Mar | 0.88 | 1.00 | -0.12 |
| Apr | 2.04 | 2.07 | -0.03 |
| May | 3.35 | 3.83 | -0.48 |
| Jun | 3.14 | 3.19 | -0.05 |
| Jul | 2.30 | 2.44 | -0.14 |
| Aug | 1.71 | 1.78 | -0.07 |
| Sep | 1.25 | 1.22 | 0.03 |
| Oct | 1.67 | 1.65 | 0.02 |
| Nov | 0.54 | 0.54 | 0.00 |
| Dec | 0.40 | 0.49 | -0.09 |
18.21 | 19.14 | -0.93 |