| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.37 | 0.37 | 0.00 |
| Feb | 0.45 | 0.44 | 0.01 |
| Mar | 0.82 | 0.76 | 0.06 |
| Apr | 1.72 | 1.68 | 0.04 |
| May | 2.56 | 2.53 | 0.03 |
| Jun | 2.74 | 2.51 | 0.23 |
| Jul | 3.11 | 3.01 | 0.10 |
| Aug | 2.73 | 2.69 | 0.04 |
| Sep | 1.44 | 1.45 | -0.01 |
| Oct | 1.32 | 1.32 | 0.00 |
| Nov | 0.56 | 0.52 | 0.04 |
| Dec | 0.47 | 0.44 | 0.03 |
18.29 | 17.72 | 0.57 |