| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.84 | 2.96 | -0.12 |
| Feb | 2.31 | 2.37 | -0.06 |
| Mar | 3.37 | 3.38 | -0.01 |
| Apr | 3.95 | 3.92 | 0.03 |
| May | 4.30 | 4.14 | 0.16 |
| Jun | 4.49 | 4.50 | -0.01 |
| Jul | 4.38 | 4.22 | 0.16 |
| Aug | 3.63 | 3.49 | 0.14 |
| Sep | 3.30 | 3.17 | 0.13 |
| Oct | 2.87 | 2.87 | 0.00 |
| Nov | 2.83 | 2.84 | -0.01 |
| Dec | 2.97 | 3.07 | -0.10 |
41.24 | 40.93 | 0.31 |