| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.64 | 0.64 | 0.00 |
| Feb | 0.75 | 0.77 | -0.02 |
| Mar | 1.49 | 1.46 | 0.03 |
| Apr | 2.39 | 2.46 | -0.07 |
| May | 4.38 | 4.45 | -0.07 |
| Jun | 4.10 | 3.91 | 0.19 |
| Jul | 4.20 | 4.13 | 0.07 |
| Aug | 3.41 | 3.34 | 0.07 |
| Sep | 2.36 | 2.32 | 0.04 |
| Oct | 2.03 | 2.02 | 0.01 |
| Nov | 1.19 | 1.23 | -0.04 |
| Dec | 0.83 | 0.88 | -0.05 |
27.77 | 27.61 | 0.16 |