| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.59 | 0.65 | -0.06 |
| Feb | 0.82 | 0.83 | -0.01 |
| Mar | 1.47 | 1.51 | -0.04 |
| Apr | 2.90 | 2.99 | -0.09 |
| May | 3.81 | 3.78 | 0.03 |
| Jun | 4.63 | 4.55 | 0.08 |
| Jul | 3.44 | 3.50 | -0.06 |
| Aug | 3.34 | 3.39 | -0.05 |
| Sep | 2.99 | 2.87 | 0.12 |
| Oct | 2.31 | 2.31 | 0.00 |
| Nov | 1.22 | 1.31 | -0.09 |
| Dec | 0.86 | 0.90 | -0.04 |
28.38 | 28.59 | -0.21 |