| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.68 | 0.70 | -0.02 |
| Feb | 0.74 | 0.79 | -0.05 |
| Mar | 1.47 | 1.46 | 0.01 |
| Apr | 2.74 | 2.85 | -0.11 |
| May | 3.44 | 3.41 | 0.03 |
| Jun | 4.07 | 4.30 | -0.23 |
| Jul | 3.42 | 3.33 | 0.09 |
| Aug | 3.43 | 3.34 | 0.09 |
| Sep | 2.85 | 2.87 | -0.02 |
| Oct | 2.29 | 2.27 | 0.02 |
| Nov | 1.17 | 1.17 | 0.00 |
| Dec | 0.88 | 0.95 | -0.07 |
27.18 | 27.44 | -0.26 |