| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.47 | 3.51 | -0.04 |
| Feb | 3.05 | 3.09 | -0.04 |
| Mar | 3.56 | 3.69 | -0.13 |
| Apr | 3.53 | 3.49 | 0.04 |
| May | 3.76 | 3.76 | 0.00 |
| Jun | 4.68 | 4.71 | -0.03 |
| Jul | 5.42 | 5.37 | 0.05 |
| Aug | 5.21 | 5.44 | -0.23 |
| Sep | 5.73 | 5.80 | -0.07 |
| Oct | 3.25 | 3.37 | -0.12 |
| Nov | 3.29 | 3.33 | -0.04 |
| Dec | 3.40 | 3.41 | -0.01 |
48.35 | 48.97 | -0.62 |