| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.40 | 3.38 | 0.02 |
| Feb | 3.08 | 3.44 | -0.36 |
| Mar | 3.95 | 3.89 | 0.06 |
| Apr | 4.22 | 4.07 | 0.15 |
| May | 3.88 | 3.62 | 0.26 |
| Jun | 4.37 | 4.25 | 0.12 |
| Jul | 4.12 | 4.13 | -0.01 |
| Aug | 3.99 | 3.78 | 0.21 |
| Sep | 3.83 | 3.72 | 0.11 |
| Oct | 5.37 | 5.13 | 0.24 |
| Nov | 4.26 | 4.09 | 0.17 |
| Dec | 4.31 | 4.51 | -0.20 |
48.78 | 48.01 | 0.77 |