| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.79 | 3.65 | 0.14 |
| Feb | 3.35 | 3.28 | 0.07 |
| Mar | 4.30 | 4.24 | 0.06 |
| Apr | 4.41 | 4.16 | 0.25 |
| May | 3.69 | 3.59 | 0.10 |
| Jun | 4.46 | 4.26 | 0.20 |
| Jul | 3.98 | 3.94 | 0.04 |
| Aug | 4.44 | 4.24 | 0.20 |
| Sep | 4.33 | 4.18 | 0.15 |
| Oct | 4.99 | 4.91 | 0.08 |
| Nov | 4.06 | 3.77 | 0.29 |
| Dec | 4.49 | 4.51 | -0.02 |
50.29 | 48.73 | 1.56 |