| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.60 | 3.64 | -0.04 |
| Feb | 3.05 | 2.97 | 0.08 |
| Mar | 4.16 | 4.15 | 0.01 |
| Apr | 3.67 | 3.66 | 0.01 |
| May | 3.64 | 3.63 | 0.01 |
| Jun | 4.24 | 4.23 | 0.01 |
| Jul | 4.68 | 4.57 | 0.11 |
| Aug | 4.43 | 4.41 | 0.02 |
| Sep | 5.01 | 5.07 | -0.06 |
| Oct | 3.39 | 3.46 | -0.07 |
| Nov | 3.31 | 3.34 | -0.03 |
| Dec | 3.59 | 3.53 | 0.06 |
46.77 | 46.66 | 0.11 |