| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.82 | 0.76 | 0.06 |
| Feb | 1.18 | 1.14 | 0.04 |
| Mar | 2.31 | 2.24 | 0.07 |
| Apr | 2.60 | 2.55 | 0.05 |
| May | 4.92 | 4.68 | 0.24 |
| Jun | 4.54 | 4.40 | 0.14 |
| Jul | 3.64 | 3.92 | -0.28 |
| Aug | 3.68 | 3.70 | -0.02 |
| Sep | 2.37 | 2.29 | 0.08 |
| Oct | 2.62 | 2.61 | 0.01 |
| Nov | 1.33 | 1.27 | 0.06 |
| Dec | 1.21 | 1.17 | 0.04 |
31.22 | 30.73 | 0.49 |