| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.55 | 3.77 | -0.22 |
| Feb | 2.93 | 3.02 | -0.09 |
| Mar | 4.24 | 4.26 | -0.02 |
| Apr | 3.80 | 3.84 | -0.04 |
| May | 3.71 | 3.96 | -0.25 |
| Jun | 4.51 | 4.41 | 0.10 |
| Jul | 4.46 | 4.44 | 0.02 |
| Aug | 4.31 | 4.28 | 0.03 |
| Sep | 4.74 | 5.01 | -0.27 |
| Oct | 3.51 | 3.42 | 0.09 |
| Nov | 3.37 | 3.37 | 0.00 |
| Dec | 3.62 | 3.60 | 0.02 |
46.75 | 47.38 | -0.63 |