| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.44 | 3.42 | 0.02 |
| Feb | 3.16 | 3.10 | 0.06 |
| Mar | 3.46 | 3.54 | -0.08 |
| Apr | 3.12 | 3.19 | -0.07 |
| May | 3.40 | 3.24 | 0.16 |
| Jun | 5.81 | 6.18 | -0.37 |
| Jul | 5.62 | 5.74 | -0.12 |
| Aug | 5.96 | 6.74 | -0.78 |
| Sep | 4.80 | 5.01 | -0.21 |
| Oct | 3.60 | 4.38 | -0.78 |
| Nov | 2.20 | 2.51 | -0.31 |
| Dec | 2.99 | 3.30 | -0.31 |
47.56 | 50.35 | -2.79 |