| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.36 | 4.59 | -0.23 |
| Feb | 2.82 | 3.06 | -0.24 |
| Mar | 3.22 | 3.30 | -0.08 |
| Apr | 3.69 | 4.27 | -0.58 |
| May | 4.82 | 5.00 | -0.18 |
| Jun | 5.37 | 5.70 | -0.33 |
| Jul | 4.32 | 4.37 | -0.05 |
| Aug | 5.30 | 5.95 | -0.65 |
| Sep | 5.88 | 6.60 | -0.72 |
| Oct | 5.13 | 5.53 | -0.40 |
| Nov | 4.19 | 4.81 | -0.62 |
| Dec | 4.28 | 4.52 | -0.24 |
53.38 | 57.70 | -4.32 |