| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.43 | 3.63 | -0.20 |
| Feb | 3.21 | 3.21 | 0.00 |
| Mar | 4.18 | 4.23 | -0.05 |
| Apr | 4.07 | 4.18 | -0.11 |
| May | 3.63 | 3.54 | 0.09 |
| Jun | 4.11 | 4.10 | 0.01 |
| Jul | 3.65 | 3.71 | -0.06 |
| Aug | 3.82 | 3.83 | -0.01 |
| Sep | 3.98 | 3.86 | 0.12 |
| Oct | 4.69 | 4.66 | 0.03 |
| Nov | 3.82 | 3.79 | 0.03 |
| Dec | 4.49 | 4.60 | -0.11 |
47.08 | 47.34 | -0.26 |