| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.33 | 4.27 | 0.06 |
| Feb | 4.58 | 4.36 | 0.22 |
| Mar | 4.89 | 4.52 | 0.37 |
| Apr | 4.42 | 4.42 | 0.00 |
| May | 4.02 | 3.66 | 0.36 |
| Jun | 4.68 | 4.05 | 0.63 |
| Jul | 4.71 | 4.71 | 0.00 |
| Aug | 3.53 | 3.40 | 0.13 |
| Sep | 3.58 | 3.31 | 0.27 |
| Oct | 3.03 | 2.70 | 0.33 |
| Nov | 3.47 | 3.15 | 0.32 |
| Dec | 5.24 | 4.76 | 0.48 |
50.48 | 47.31 | 3.17 |