| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.37 | 3.88 | -0.51 |
| Feb | 2.94 | 3.40 | -0.46 |
| Mar | 4.31 | 4.87 | -0.56 |
| Apr | 4.02 | 4.40 | -0.38 |
| May | 3.43 | 3.30 | 0.13 |
| Jun | 3.61 | 3.63 | -0.02 |
| Jul | 3.02 | 3.00 | 0.02 |
| Aug | 3.60 | 3.68 | -0.08 |
| Sep | 3.89 | 3.62 | 0.27 |
| Oct | 4.30 | 4.58 | -0.28 |
| Nov | 3.54 | 3.93 | -0.39 |
| Dec | 4.19 | 4.77 | -0.58 |
44.22 | 47.06 | -2.84 |