| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.53 | 3.63 | -0.10 |
| Feb | 2.90 | 2.89 | 0.01 |
| Mar | 4.14 | 4.06 | 0.08 |
| Apr | 3.68 | 3.59 | 0.09 |
| May | 3.75 | 3.65 | 0.10 |
| Jun | 4.40 | 4.41 | -0.01 |
| Jul | 4.84 | 4.78 | 0.06 |
| Aug | 4.82 | 4.66 | 0.16 |
| Sep | 5.02 | 5.30 | -0.28 |
| Oct | 3.54 | 3.59 | -0.05 |
| Nov | 3.43 | 3.37 | 0.06 |
| Dec | 3.54 | 3.50 | 0.04 |
47.59 | 47.43 | 0.16 |