| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.26 | 1.26 | 0.00 |
| Feb | 1.49 | 1.47 | 0.02 |
| Mar | 2.14 | 2.10 | 0.04 |
| Apr | 3.94 | 3.80 | 0.14 |
| May | 4.36 | 4.43 | -0.07 |
| Jun | 5.69 | 5.40 | 0.29 |
| Jul | 4.83 | 4.83 | 0.00 |
| Aug | 4.05 | 3.98 | 0.07 |
| Sep | 3.64 | 3.70 | -0.06 |
| Oct | 3.02 | 2.92 | 0.10 |
| Nov | 2.28 | 2.24 | 0.04 |
| Dec | 1.70 | 1.71 | -0.01 |
38.40 | 37.84 | 0.56 |