| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.61 | 3.75 | -0.14 |
| Feb | 2.99 | 3.09 | -0.10 |
| Mar | 3.94 | 4.06 | -0.12 |
| Apr | 3.80 | 3.92 | -0.12 |
| May | 3.71 | 3.56 | 0.15 |
| Jun | 4.18 | 4.15 | 0.03 |
| Jul | 4.41 | 4.31 | 0.10 |
| Aug | 4.41 | 4.54 | -0.13 |
| Sep | 4.40 | 4.45 | -0.05 |
| Oct | 3.31 | 3.26 | 0.05 |
| Nov | 3.37 | 3.43 | -0.06 |
| Dec | 3.48 | 3.61 | -0.13 |
45.61 | 46.13 | -0.52 |