| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.15 | 3.48 | -0.33 |
| Feb | 2.84 | 3.08 | -0.24 |
| Mar | 3.81 | 4.01 | -0.20 |
| Apr | 3.89 | 4.07 | -0.18 |
| May | 3.45 | 3.56 | -0.11 |
| Jun | 4.11 | 4.19 | -0.08 |
| Jul | 3.97 | 4.06 | -0.09 |
| Aug | 4.03 | 3.98 | 0.05 |
| Sep | 4.08 | 4.18 | -0.10 |
| Oct | 4.45 | 4.77 | -0.32 |
| Nov | 3.53 | 3.79 | -0.26 |
| Dec | 4.06 | 4.42 | -0.36 |
45.37 | 47.59 | -2.22 |