| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.70 | 3.71 | -0.01 |
| Feb | 3.12 | 3.03 | 0.09 |
| Mar | 3.87 | 4.01 | -0.14 |
| Apr | 3.72 | 3.74 | -0.02 |
| May | 3.62 | 3.38 | 0.24 |
| Jun | 4.50 | 4.40 | 0.10 |
| Jul | 4.47 | 4.61 | -0.14 |
| Aug | 4.25 | 4.56 | -0.31 |
| Sep | 4.18 | 4.37 | -0.19 |
| Oct | 3.47 | 3.38 | 0.09 |
| Nov | 3.44 | 3.39 | 0.05 |
| Dec | 3.72 | 3.64 | 0.08 |
46.06 | 46.22 | -0.16 |