| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.65 | 0.69 | -0.04 |
| Feb | 0.68 | 0.69 | -0.01 |
| Mar | 1.22 | 1.21 | 0.01 |
| Apr | 2.20 | 2.16 | 0.04 |
| May | 3.28 | 3.41 | -0.13 |
| Jun | 4.36 | 4.19 | 0.17 |
| Jul | 4.23 | 4.16 | 0.07 |
| Aug | 3.22 | 2.98 | 0.24 |
| Sep | 3.01 | 2.75 | 0.26 |
| Oct | 2.63 | 2.65 | -0.02 |
| Nov | 1.17 | 1.10 | 0.07 |
| Dec | 0.82 | 0.80 | 0.02 |
27.47 | 26.79 | 0.68 |