| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.39 | 1.36 | 0.03 |
| Feb | 1.61 | 1.59 | 0.02 |
| Mar | 2.26 | 2.20 | 0.06 |
| Apr | 3.80 | 3.78 | 0.02 |
| May | 4.29 | 4.34 | -0.05 |
| Jun | 5.68 | 5.61 | 0.07 |
| Jul | 4.74 | 4.61 | 0.13 |
| Aug | 3.96 | 4.04 | -0.08 |
| Sep | 3.90 | 3.76 | 0.14 |
| Oct | 3.01 | 3.03 | -0.02 |
| Nov | 2.36 | 2.37 | -0.01 |
| Dec | 1.82 | 1.77 | 0.05 |
38.82 | 38.46 | 0.36 |