| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.61 | 3.53 | 0.08 |
| Feb | 3.11 | 2.99 | 0.12 |
| Mar | 3.84 | 3.87 | -0.03 |
| Apr | 3.47 | 3.50 | -0.03 |
| May | 3.72 | 3.69 | 0.03 |
| Jun | 4.63 | 4.47 | 0.16 |
| Jul | 5.14 | 5.38 | -0.24 |
| Aug | 5.10 | 5.17 | -0.07 |
| Sep | 5.46 | 5.47 | -0.01 |
| Oct | 3.29 | 3.37 | -0.08 |
| Nov | 3.41 | 3.32 | 0.09 |
| Dec | 3.45 | 3.38 | 0.07 |
48.23 | 48.14 | 0.09 |