| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.56 | 3.70 | -0.14 |
| Feb | 3.36 | 3.39 | -0.03 |
| Mar | 4.34 | 4.54 | -0.20 |
| Apr | 4.11 | 4.24 | -0.13 |
| May | 3.61 | 3.56 | 0.05 |
| Jun | 4.09 | 4.03 | 0.06 |
| Jul | 3.53 | 3.62 | -0.09 |
| Aug | 3.60 | 3.65 | -0.05 |
| Sep | 3.81 | 3.73 | 0.08 |
| Oct | 4.61 | 4.72 | -0.11 |
| Nov | 3.86 | 3.90 | -0.04 |
| Dec | 4.59 | 4.75 | -0.16 |
47.07 | 47.83 | -0.76 |