| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.38 | 0.41 | -0.03 |
| Feb | 0.63 | 0.64 | -0.01 |
| Mar | 1.10 | 1.17 | -0.07 |
| Apr | 2.29 | 2.32 | -0.03 |
| May | 3.44 | 3.56 | -0.12 |
| Jun | 3.56 | 3.62 | -0.06 |
| Jul | 3.37 | 3.49 | -0.12 |
| Aug | 2.90 | 2.91 | -0.01 |
| Sep | 1.64 | 1.67 | -0.03 |
| Oct | 1.73 | 1.77 | -0.04 |
| Nov | 0.81 | 0.83 | -0.02 |
| Dec | 0.55 | 0.61 | -0.06 |
22.40 | 23.00 | -0.60 |