| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.59 | 3.29 | -0.70 |
| Feb | 2.20 | 2.58 | -0.38 |
| Mar | 2.44 | 2.89 | -0.45 |
| Apr | 2.89 | 3.17 | -0.28 |
| May | 3.41 | 3.43 | -0.02 |
| Jun | 3.99 | 3.99 | 0.00 |
| Jul | 4.21 | 4.23 | -0.02 |
| Aug | 3.67 | 3.70 | -0.03 |
| Sep | 3.47 | 3.65 | -0.18 |
| Oct | 4.02 | 4.29 | -0.27 |
| Nov | 3.15 | 3.46 | -0.31 |
| Dec | 3.22 | 3.73 | -0.51 |
39.26 | 42.41 | -3.15 |