| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.85 | 3.99 | -0.14 |
| Feb | 4.48 | 4.53 | -0.05 |
| Mar | 4.77 | 4.79 | -0.02 |
| Apr | 5.06 | 5.08 | -0.02 |
| May | 5.30 | 5.36 | -0.06 |
| Jun | 4.57 | 4.25 | 0.32 |
| Jul | 4.49 | 4.57 | -0.08 |
| Aug | 3.73 | 3.22 | 0.51 |
| Sep | 3.37 | 3.50 | -0.13 |
| Oct | 3.86 | 4.01 | -0.15 |
| Nov | 4.03 | 3.92 | 0.11 |
| Dec | 4.80 | 4.86 | -0.06 |
52.31 | 52.08 | 0.23 |