| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.56 | 0.59 | -0.03 |
| Feb | 0.60 | 0.63 | -0.03 |
| Mar | 1.38 | 1.33 | 0.05 |
| Apr | 1.92 | 1.86 | 0.06 |
| May | 3.02 | 3.12 | -0.10 |
| Jun | 3.49 | 3.33 | 0.16 |
| Jul | 3.22 | 3.01 | 0.21 |
| Aug | 3.02 | 3.04 | -0.02 |
| Sep | 1.47 | 1.45 | 0.02 |
| Oct | 1.97 | 1.93 | 0.04 |
| Nov | 0.76 | 0.77 | -0.01 |
| Dec | 0.87 | 0.90 | -0.03 |
22.28 | 21.96 | 0.32 |