| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.13 | 4.27 | -0.14 |
| Feb | 3.24 | 3.37 | -0.13 |
| Mar | 3.67 | 3.96 | -0.29 |
| Apr | 3.40 | 3.80 | -0.40 |
| May | 3.25 | 3.43 | -0.18 |
| Jun | 2.06 | 2.31 | -0.25 |
| Jul | 0.52 | 0.51 | 0.01 |
| Aug | 0.64 | 0.61 | 0.03 |
| Sep | 1.14 | 1.18 | -0.04 |
| Oct | 2.64 | 2.60 | 0.04 |
| Nov | 4.24 | 4.31 | -0.07 |
| Dec | 4.29 | 4.38 | -0.09 |
33.22 | 34.73 | -1.51 |