| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.92 | 3.79 | 0.13 |
| Feb | 3.25 | 3.30 | -0.05 |
| Mar | 4.02 | 4.01 | 0.01 |
| Apr | 3.99 | 4.04 | -0.05 |
| May | 3.96 | 4.00 | -0.04 |
| Jun | 4.21 | 4.34 | -0.13 |
| Jul | 4.51 | 4.58 | -0.07 |
| Aug | 4.27 | 4.05 | 0.22 |
| Sep | 4.18 | 4.51 | -0.33 |
| Oct | 3.23 | 3.19 | 0.04 |
| Nov | 3.49 | 3.40 | 0.09 |
| Dec | 3.78 | 3.82 | -0.04 |
46.81 | 47.03 | -0.22 |