| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.70 | 0.73 | -0.03 |
| Feb | 0.68 | 0.71 | -0.03 |
| Mar | 1.17 | 1.20 | -0.03 |
| Apr | 1.98 | 2.10 | -0.12 |
| May | 3.08 | 3.24 | -0.16 |
| Jun | 4.36 | 4.25 | 0.11 |
| Jul | 4.11 | 4.16 | -0.05 |
| Aug | 3.23 | 3.29 | -0.06 |
| Sep | 3.00 | 3.03 | -0.03 |
| Oct | 2.71 | 2.73 | -0.02 |
| Nov | 1.21 | 1.27 | -0.06 |
| Dec | 0.91 | 0.97 | -0.06 |
27.14 | 27.68 | -0.54 |