| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.50 | 1.51 | -0.01 |
| Feb | 1.67 | 1.69 | -0.02 |
| Mar | 2.38 | 2.27 | 0.11 |
| Apr | 3.67 | 3.68 | -0.01 |
| May | 4.36 | 4.40 | -0.04 |
| Jun | 5.27 | 5.22 | 0.05 |
| Jul | 4.53 | 4.33 | 0.20 |
| Aug | 3.99 | 3.84 | 0.15 |
| Sep | 3.64 | 3.58 | 0.06 |
| Oct | 2.87 | 2.82 | 0.05 |
| Nov | 2.37 | 2.29 | 0.08 |
| Dec | 1.83 | 1.91 | -0.08 |
38.08 | 37.54 | 0.54 |