| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.69 | 1.73 | -0.04 |
| Feb | 1.74 | 1.73 | 0.01 |
| Mar | 2.43 | 2.34 | 0.09 |
| Apr | 3.55 | 3.52 | 0.03 |
| May | 4.66 | 4.64 | 0.02 |
| Jun | 5.12 | 4.97 | 0.15 |
| Jul | 4.06 | 4.11 | -0.05 |
| Aug | 3.91 | 3.85 | 0.06 |
| Sep | 3.43 | 3.36 | 0.07 |
| Oct | 2.87 | 2.81 | 0.06 |
| Nov | 2.37 | 2.32 | 0.05 |
| Dec | 2.00 | 2.04 | -0.04 |
37.83 | 37.42 | 0.41 |