| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.92 | 0.94 | -0.02 |
| Feb | 0.95 | 0.96 | -0.01 |
| Mar | 1.63 | 1.62 | 0.01 |
| Apr | 2.81 | 2.88 | -0.07 |
| May | 3.96 | 3.89 | 0.07 |
| Jun | 4.41 | 4.43 | -0.02 |
| Jul | 4.22 | 4.15 | 0.07 |
| Aug | 4.16 | 4.16 | 0.00 |
| Sep | 3.53 | 3.60 | -0.07 |
| Oct | 3.09 | 3.14 | -0.05 |
| Nov | 1.78 | 1.78 | 0.00 |
| Dec | 1.27 | 1.28 | -0.01 |
32.73 | 32.83 | -0.10 |