| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.54 | 3.64 | -0.10 |
| Feb | 2.99 | 3.08 | -0.09 |
| Mar | 3.78 | 4.00 | -0.22 |
| Apr | 4.03 | 4.09 | -0.06 |
| May | 3.91 | 4.03 | -0.12 |
| Jun | 4.11 | 4.07 | 0.04 |
| Jul | 4.24 | 4.38 | -0.14 |
| Aug | 4.31 | 4.28 | 0.03 |
| Sep | 3.98 | 4.25 | -0.27 |
| Oct | 3.18 | 3.25 | -0.07 |
| Nov | 3.13 | 3.22 | -0.09 |
| Dec | 3.51 | 3.78 | -0.27 |
44.71 | 46.07 | -1.36 |