| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.67 | 2.73 | -0.06 |
| Feb | 2.25 | 2.27 | -0.02 |
| Mar | 3.00 | 3.07 | -0.07 |
| Apr | 3.91 | 3.87 | 0.04 |
| May | 4.32 | 4.37 | -0.05 |
| Jun | 4.49 | 4.68 | -0.19 |
| Jul | 4.10 | 4.21 | -0.11 |
| Aug | 3.39 | 3.50 | -0.11 |
| Sep | 3.06 | 3.14 | -0.08 |
| Oct | 2.71 | 2.76 | -0.05 |
| Nov | 2.82 | 2.85 | -0.03 |
| Dec | 2.80 | 2.86 | -0.06 |
39.52 | 40.31 | -0.79 |