| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.66 | 0.72 | -0.06 |
| Feb | 0.81 | 0.86 | -0.05 |
| Mar | 1.72 | 1.74 | -0.02 |
| Apr | 2.56 | 2.73 | -0.17 |
| May | 2.74 | 3.01 | -0.27 |
| Jun | 1.80 | 1.86 | -0.06 |
| Jul | 1.73 | 1.74 | -0.01 |
| Aug | 1.70 | 1.62 | 0.08 |
| Sep | 1.44 | 2.00 | -0.56 |
| Oct | 1.32 | 1.50 | -0.18 |
| Nov | 1.03 | 1.04 | -0.01 |
| Dec | 0.66 | 0.72 | -0.06 |
18.17 | 19.54 | -1.37 |