| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.65 | 0.70 | -0.05 |
| Feb | 0.65 | 0.71 | -0.06 |
| Mar | 1.19 | 1.29 | -0.10 |
| Apr | 2.09 | 2.23 | -0.14 |
| May | 3.35 | 3.40 | -0.05 |
| Jun | 4.29 | 4.28 | 0.01 |
| Jul | 4.32 | 4.31 | 0.01 |
| Aug | 3.38 | 3.16 | 0.22 |
| Sep | 2.89 | 2.84 | 0.05 |
| Oct | 2.69 | 2.75 | -0.06 |
| Nov | 1.22 | 1.24 | -0.02 |
| Dec | 0.88 | 0.92 | -0.04 |
27.60 | 27.83 | -0.23 |