| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.73 | 0.69 | 0.04 |
| Feb | 0.77 | 0.73 | 0.04 |
| Mar | 1.40 | 1.39 | 0.01 |
| Apr | 2.52 | 2.47 | 0.05 |
| May | 3.36 | 3.25 | 0.11 |
| Jun | 4.54 | 4.59 | -0.05 |
| Jul | 3.88 | 4.03 | -0.15 |
| Aug | 3.77 | 3.88 | -0.11 |
| Sep | 2.87 | 2.91 | -0.04 |
| Oct | 2.41 | 2.41 | 0.00 |
| Nov | 1.30 | 1.23 | 0.07 |
| Dec | 0.86 | 0.86 | 0.00 |
28.41 | 28.44 | -0.03 |