| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.51 | 3.62 | -0.11 |
| Feb | 2.89 | 2.90 | -0.01 |
| Mar | 4.12 | 4.09 | 0.03 |
| Apr | 3.66 | 3.63 | 0.03 |
| May | 3.71 | 3.63 | 0.08 |
| Jun | 4.41 | 4.27 | 0.14 |
| Jul | 4.85 | 4.80 | 0.05 |
| Aug | 4.73 | 4.59 | 0.14 |
| Sep | 4.97 | 5.33 | -0.36 |
| Oct | 3.54 | 3.62 | -0.08 |
| Nov | 3.39 | 3.37 | 0.02 |
| Dec | 3.51 | 3.53 | -0.02 |
47.29 | 47.38 | -0.09 |