| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.66 | 0.66 | 0.00 |
| Feb | 0.66 | 0.68 | -0.02 |
| Mar | 1.23 | 1.21 | 0.02 |
| Apr | 2.17 | 2.18 | -0.01 |
| May | 3.34 | 3.42 | -0.08 |
| Jun | 4.24 | 4.26 | -0.02 |
| Jul | 4.32 | 4.24 | 0.08 |
| Aug | 3.39 | 3.18 | 0.21 |
| Sep | 2.95 | 2.86 | 0.09 |
| Oct | 2.65 | 2.67 | -0.02 |
| Nov | 1.19 | 1.13 | 0.06 |
| Dec | 0.86 | 0.90 | -0.04 |
27.66 | 27.39 | 0.27 |