| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.49 | 3.60 | -0.11 |
| Feb | 3.09 | 3.10 | -0.01 |
| Mar | 4.54 | 4.62 | -0.08 |
| Apr | 3.44 | 3.61 | -0.17 |
| May | 3.33 | 3.40 | -0.07 |
| Jun | 3.81 | 3.88 | -0.07 |
| Jul | 4.61 | 4.51 | 0.10 |
| Aug | 4.70 | 4.78 | -0.08 |
| Sep | 3.76 | 3.86 | -0.10 |
| Oct | 4.12 | 4.22 | -0.10 |
| Nov | 3.38 | 3.38 | 0.00 |
| Dec | 4.46 | 4.56 | -0.10 |
46.73 | 47.52 | -0.79 |