| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.12 | 1.16 | -0.04 |
| Feb | 1.41 | 1.42 | -0.01 |
| Mar | 2.24 | 2.28 | -0.04 |
| Apr | 3.62 | 3.78 | -0.16 |
| May | 4.73 | 4.69 | 0.04 |
| Jun | 5.24 | 5.22 | 0.02 |
| Jul | 4.20 | 4.23 | -0.03 |
| Aug | 4.22 | 4.11 | 0.11 |
| Sep | 3.66 | 3.38 | 0.28 |
| Oct | 2.92 | 2.94 | -0.02 |
| Nov | 2.14 | 2.20 | -0.06 |
| Dec | 1.62 | 1.62 | 0.00 |
37.12 | 37.03 | 0.09 |