| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.70 | 0.65 | 0.05 |
| Feb | 0.73 | 0.72 | 0.01 |
| Mar | 1.36 | 1.36 | 0.00 |
| Apr | 2.37 | 2.39 | -0.02 |
| May | 3.35 | 3.38 | -0.03 |
| Jun | 4.37 | 4.45 | -0.08 |
| Jul | 4.21 | 4.14 | 0.07 |
| Aug | 3.55 | 3.58 | -0.03 |
| Sep | 2.92 | 3.02 | -0.10 |
| Oct | 2.63 | 2.66 | -0.03 |
| Nov | 1.26 | 1.23 | 0.03 |
| Dec | 0.87 | 0.89 | -0.02 |
28.32 | 28.47 | -0.15 |