| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.33 | 3.57 | -0.24 |
| Feb | 2.82 | 2.93 | -0.11 |
| Mar | 3.69 | 3.74 | -0.05 |
| Apr | 3.66 | 3.97 | -0.31 |
| May | 4.28 | 4.46 | -0.18 |
| Jun | 4.55 | 4.62 | -0.07 |
| Jul | 4.36 | 4.19 | 0.17 |
| Aug | 3.55 | 3.57 | -0.02 |
| Sep | 4.16 | 4.45 | -0.29 |
| Oct | 3.33 | 3.46 | -0.13 |
| Nov | 3.10 | 3.25 | -0.15 |
| Dec | 3.49 | 3.67 | -0.18 |
44.32 | 45.88 | -1.56 |