| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.63 | 0.68 | -0.05 |
| Feb | 0.73 | 0.76 | -0.03 |
| Mar | 1.49 | 1.47 | 0.02 |
| Apr | 2.72 | 2.76 | -0.04 |
| May | 3.59 | 3.67 | -0.08 |
| Jun | 4.42 | 4.36 | 0.06 |
| Jul | 3.63 | 3.58 | 0.05 |
| Aug | 3.60 | 3.48 | 0.12 |
| Sep | 3.18 | 3.11 | 0.07 |
| Oct | 2.28 | 2.21 | 0.07 |
| Nov | 1.30 | 1.28 | 0.02 |
| Dec | 0.82 | 0.88 | -0.06 |
28.39 | 28.24 | 0.15 |