| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.65 | 0.65 | 0.00 |
| Feb | 0.66 | 0.69 | -0.03 |
| Mar | 1.25 | 1.29 | -0.04 |
| Apr | 2.19 | 2.26 | -0.07 |
| May | 3.37 | 3.42 | -0.05 |
| Jun | 4.20 | 4.22 | -0.02 |
| Jul | 4.33 | 4.35 | -0.02 |
| Aug | 3.41 | 3.28 | 0.13 |
| Sep | 2.92 | 2.85 | 0.07 |
| Oct | 2.65 | 2.69 | -0.04 |
| Nov | 1.23 | 1.22 | 0.01 |
| Dec | 0.88 | 0.91 | -0.03 |
27.74 | 27.83 | -0.09 |