| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.58 | 0.54 | 0.04 |
| Feb | 0.77 | 0.73 | 0.04 |
| Mar | 1.52 | 1.49 | 0.03 |
| Apr | 2.80 | 2.84 | -0.04 |
| May | 4.19 | 4.15 | 0.04 |
| Jun | 4.08 | 4.17 | -0.09 |
| Jul | 3.06 | 3.24 | -0.18 |
| Aug | 3.66 | 3.73 | -0.07 |
| Sep | 2.48 | 2.50 | -0.02 |
| Oct | 2.24 | 2.26 | -0.02 |
| Nov | 1.15 | 1.15 | 0.00 |
| Dec | 0.86 | 0.81 | 0.05 |
27.39 | 27.61 | -0.22 |