| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.66 | 3.49 | 0.17 |
| Feb | 3.25 | 3.13 | 0.12 |
| Mar | 3.98 | 3.91 | 0.07 |
| Apr | 4.02 | 3.78 | 0.24 |
| May | 3.92 | 3.89 | 0.03 |
| Jun | 4.31 | 4.54 | -0.23 |
| Jul | 4.91 | 5.09 | -0.18 |
| Aug | 4.45 | 4.20 | 0.25 |
| Sep | 3.88 | 3.52 | 0.36 |
| Oct | 3.29 | 2.55 | 0.74 |
| Nov | 3.22 | 2.86 | 0.36 |
| Dec | 3.83 | 3.52 | 0.31 |
46.72 | 44.48 | 2.24 |