| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.56 | 0.56 | 0.00 |
| Feb | 0.70 | 0.74 | -0.04 |
| Mar | 1.40 | 1.39 | 0.01 |
| Apr | 2.68 | 2.78 | -0.10 |
| May | 4.56 | 4.67 | -0.11 |
| Jun | 4.06 | 3.90 | 0.16 |
| Jul | 3.59 | 3.56 | 0.03 |
| Aug | 3.31 | 3.54 | -0.23 |
| Sep | 2.12 | 2.17 | -0.05 |
| Oct | 2.15 | 2.09 | 0.06 |
| Nov | 1.22 | 1.18 | 0.04 |
| Dec | 0.84 | 0.89 | -0.05 |
27.19 | 27.47 | -0.28 |