| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.96 | 4.22 | -0.26 |
| Feb | 3.49 | 3.73 | -0.24 |
| Mar | 4.84 | 4.88 | -0.04 |
| Apr | 4.22 | 4.29 | -0.07 |
| May | 3.43 | 3.46 | -0.03 |
| Jun | 3.45 | 3.54 | -0.09 |
| Jul | 2.79 | 2.87 | -0.08 |
| Aug | 3.58 | 3.55 | 0.03 |
| Sep | 4.06 | 4.04 | 0.02 |
| Oct | 4.77 | 4.63 | 0.14 |
| Nov | 4.27 | 4.14 | 0.13 |
| Dec | 4.76 | 5.18 | -0.42 |
47.62 | 48.53 | -0.91 |