| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.39 | 3.22 | 0.17 |
| Feb | 2.66 | 2.53 | 0.13 |
| Mar | 3.84 | 3.77 | 0.07 |
| Apr | 3.80 | 3.74 | 0.06 |
| May | 3.92 | 3.94 | -0.02 |
| Jun | 4.56 | 4.81 | -0.25 |
| Jul | 4.61 | 4.67 | -0.06 |
| Aug | 4.63 | 4.42 | 0.21 |
| Sep | 4.90 | 4.69 | 0.21 |
| Oct | 4.37 | 4.18 | 0.19 |
| Nov | 3.30 | 3.20 | 0.10 |
| Dec | 3.88 | 3.75 | 0.13 |
47.86 | 46.92 | 0.94 |