| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.74 | 0.81 | -0.07 |
| Feb | 0.73 | 0.75 | -0.02 |
| Mar | 1.17 | 1.16 | 0.01 |
| Apr | 1.96 | 2.08 | -0.12 |
| May | 3.15 | 3.16 | -0.01 |
| Jun | 4.42 | 4.50 | -0.08 |
| Jul | 3.92 | 4.00 | -0.08 |
| Aug | 3.44 | 3.31 | 0.13 |
| Sep | 3.05 | 3.29 | -0.24 |
| Oct | 2.69 | 2.78 | -0.09 |
| Nov | 1.38 | 1.43 | -0.05 |
| Dec | 1.05 | 1.10 | -0.05 |
27.70 | 28.37 | -0.67 |