| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.67 | 0.69 | -0.02 |
| Feb | 0.74 | 0.78 | -0.04 |
| Mar | 1.45 | 1.43 | 0.02 |
| Apr | 2.72 | 2.72 | 0.00 |
| May | 3.42 | 3.42 | 0.00 |
| Jun | 4.05 | 4.29 | -0.24 |
| Jul | 3.44 | 3.36 | 0.08 |
| Aug | 3.36 | 3.28 | 0.08 |
| Sep | 2.84 | 2.86 | -0.02 |
| Oct | 2.29 | 2.25 | 0.04 |
| Nov | 1.15 | 1.14 | 0.01 |
| Dec | 0.87 | 0.92 | -0.05 |
27.00 | 27.14 | -0.14 |