| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.71 | 0.73 | -0.02 |
| Feb | 1.00 | 1.07 | -0.07 |
| Mar | 1.78 | 1.91 | -0.13 |
| Apr | 2.81 | 2.73 | 0.08 |
| May | 4.68 | 4.71 | -0.03 |
| Jun | 4.23 | 4.01 | 0.22 |
| Jul | 4.17 | 4.30 | -0.13 |
| Aug | 3.83 | 3.79 | 0.04 |
| Sep | 2.86 | 3.17 | -0.31 |
| Oct | 2.17 | 2.23 | -0.06 |
| Nov | 1.29 | 1.28 | 0.01 |
| Dec | 1.09 | 1.05 | 0.04 |
30.62 | 30.98 | -0.36 |