| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.52 | 3.41 | 0.11 |
| Feb | 3.09 | 2.97 | 0.12 |
| Mar | 4.02 | 3.91 | 0.11 |
| Apr | 3.29 | 3.32 | -0.03 |
| May | 3.59 | 3.60 | -0.01 |
| Jun | 3.98 | 3.99 | -0.01 |
| Jul | 4.62 | 4.63 | -0.01 |
| Aug | 4.41 | 4.51 | -0.10 |
| Sep | 4.31 | 4.32 | -0.01 |
| Oct | 3.95 | 4.28 | -0.33 |
| Nov | 3.08 | 3.01 | 0.07 |
| Dec | 3.66 | 3.83 | -0.17 |
45.52 | 45.78 | -0.26 |