| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.41 | 3.62 | -0.21 |
| Feb | 3.20 | 3.21 | -0.01 |
| Mar | 4.10 | 4.25 | -0.15 |
| Apr | 4.03 | 4.19 | -0.16 |
| May | 3.56 | 3.57 | -0.01 |
| Jun | 4.05 | 4.11 | -0.06 |
| Jul | 3.62 | 3.69 | -0.07 |
| Aug | 3.84 | 3.82 | 0.02 |
| Sep | 3.92 | 3.86 | 0.06 |
| Oct | 4.70 | 4.67 | 0.03 |
| Nov | 3.83 | 3.81 | 0.02 |
| Dec | 4.47 | 4.59 | -0.12 |
46.73 | 47.39 | -0.66 |