| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.43 | 2.46 | -0.03 |
| Feb | 1.93 | 2.06 | -0.13 |
| Mar | 2.44 | 2.53 | -0.09 |
| Apr | 3.72 | 3.68 | 0.04 |
| May | 4.41 | 4.42 | -0.01 |
| Jun | 4.14 | 4.12 | 0.02 |
| Jul | 3.87 | 3.67 | 0.20 |
| Aug | 3.81 | 3.83 | -0.02 |
| Sep | 3.07 | 3.06 | 0.01 |
| Oct | 2.92 | 2.83 | 0.09 |
| Nov | 2.95 | 2.94 | 0.01 |
| Dec | 2.42 | 2.34 | 0.08 |
38.11 | 37.94 | 0.17 |