| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 5.68 | 5.27 | 0.41 |
| Feb | 4.19 | 3.94 | 0.25 |
| Mar | 3.91 | 3.79 | 0.12 |
| Apr | 2.46 | 2.30 | 0.16 |
| May | 1.52 | 1.28 | 0.24 |
| Jun | 0.75 | 0.69 | 0.06 |
| Jul | 0.30 | 0.27 | 0.03 |
| Aug | 0.27 | 0.24 | 0.03 |
| Sep | 0.60 | 0.61 | -0.01 |
| Oct | 2.01 | 2.19 | -0.18 |
| Nov | 4.66 | 4.48 | 0.18 |
| Dec | 6.94 | 6.86 | 0.08 |
33.29 | 31.92 | 1.37 |