| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.69 | 0.75 | -0.06 |
| Feb | 0.76 | 0.87 | -0.11 |
| Mar | 1.42 | 1.43 | -0.01 |
| Apr | 2.79 | 2.83 | -0.04 |
| May | 4.02 | 4.14 | -0.12 |
| Jun | 4.66 | 4.56 | 0.10 |
| Jul | 3.84 | 3.85 | -0.01 |
| Aug | 4.09 | 4.19 | -0.10 |
| Sep | 3.38 | 3.25 | 0.13 |
| Oct | 2.50 | 2.51 | -0.01 |
| Nov | 1.43 | 1.48 | -0.05 |
| Dec | 1.05 | 1.10 | -0.05 |
30.63 | 30.96 | -0.33 |