| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.59 | 0.58 | 0.01 |
| Feb | 0.48 | 0.43 | 0.05 |
| Mar | 1.20 | 1.13 | 0.07 |
| Apr | 1.26 | 1.24 | 0.02 |
| May | 2.21 | 2.25 | -0.04 |
| Jun | 2.88 | 2.81 | 0.07 |
| Jul | 2.53 | 2.55 | -0.02 |
| Aug | 2.83 | 2.88 | -0.05 |
| Sep | 1.69 | 1.68 | 0.01 |
| Oct | 1.82 | 1.93 | -0.11 |
| Nov | 0.68 | 0.70 | -0.02 |
| Dec | 0.69 | 0.70 | -0.01 |
18.86 | 18.88 | -0.02 |