| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.41 | 0.41 | 0.00 |
| Feb | 0.47 | 0.50 | -0.03 |
| Mar | 1.15 | 1.28 | -0.13 |
| Apr | 2.01 | 2.07 | -0.06 |
| May | 2.56 | 2.85 | -0.29 |
| Jun | 1.75 | 1.83 | -0.08 |
| Jul | 1.63 | 1.69 | -0.06 |
| Aug | 1.39 | 1.44 | -0.05 |
| Sep | 1.37 | 1.44 | -0.07 |
| Oct | 1.14 | 1.25 | -0.11 |
| Nov | 0.70 | 0.75 | -0.05 |
| Dec | 0.43 | 0.48 | -0.05 |
15.01 | 15.99 | -0.98 |