| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.26 | 2.12 | 0.14 |
| Feb | 1.62 | 1.39 | 0.23 |
| Mar | 1.96 | 1.80 | 0.16 |
| Apr | 1.46 | 1.21 | 0.25 |
| May | 1.74 | 1.41 | 0.33 |
| Jun | 1.39 | 1.36 | 0.03 |
| Jul | 0.51 | 0.47 | 0.04 |
| Aug | 0.49 | 0.43 | 0.06 |
| Sep | 0.64 | 0.64 | 0.00 |
| Oct | 1.50 | 1.52 | -0.02 |
| Nov | 2.18 | 2.09 | 0.09 |
| Dec | 2.64 | 2.69 | -0.05 |
18.39 | 17.13 | 1.26 |