| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.53 | 3.47 | 0.06 |
| Feb | 3.28 | 3.24 | 0.04 |
| Mar | 3.48 | 3.63 | -0.15 |
| Apr | 3.21 | 3.43 | -0.22 |
| May | 3.53 | 3.59 | -0.06 |
| Jun | 5.87 | 6.15 | -0.28 |
| Jul | 5.74 | 5.67 | 0.07 |
| Aug | 5.72 | 5.87 | -0.15 |
| Sep | 4.47 | 4.55 | -0.08 |
| Oct | 3.36 | 3.74 | -0.38 |
| Nov | 2.38 | 2.60 | -0.22 |
| Dec | 3.18 | 3.42 | -0.24 |
47.75 | 49.36 | -1.61 |