| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.56 | 3.70 | -0.14 |
| Feb | 2.96 | 2.92 | 0.04 |
| Mar | 4.16 | 4.07 | 0.09 |
| Apr | 3.56 | 3.56 | 0.00 |
| May | 3.65 | 3.60 | 0.05 |
| Jun | 4.46 | 4.39 | 0.07 |
| Jul | 4.94 | 5.09 | -0.15 |
| Aug | 4.83 | 4.97 | -0.14 |
| Sep | 5.10 | 5.36 | -0.26 |
| Oct | 3.42 | 3.40 | 0.02 |
| Nov | 3.35 | 3.37 | -0.02 |
| Dec | 3.46 | 3.44 | 0.02 |
47.45 | 47.87 | -0.42 |