| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.55 | 1.35 | 0.20 |
| Feb | 1.36 | 1.24 | 0.12 |
| Mar | 1.42 | 1.14 | 0.28 |
| Apr | 1.48 | 1.24 | 0.24 |
| May | 1.92 | 1.86 | 0.06 |
| Jun | 2.25 | 2.27 | -0.02 |
| Jul | 1.03 | 1.03 | 0.00 |
| Aug | 0.94 | 0.87 | 0.07 |
| Sep | 1.20 | 1.17 | 0.03 |
| Oct | 1.66 | 1.49 | 0.17 |
| Nov | 1.84 | 1.58 | 0.26 |
| Dec | 1.77 | 1.54 | 0.23 |
18.42 | 16.78 | 1.64 |