| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.72 | 4.38 | -0.66 |
| Feb | 3.17 | 3.74 | -0.57 |
| Mar | 3.89 | 4.48 | -0.59 |
| Apr | 4.02 | 4.60 | -0.58 |
| May | 4.24 | 4.63 | -0.39 |
| Jun | 5.14 | 5.30 | -0.16 |
| Jul | 4.58 | 4.84 | -0.26 |
| Aug | 4.61 | 5.15 | -0.54 |
| Sep | 4.90 | 4.99 | -0.09 |
| Oct | 5.25 | 5.76 | -0.51 |
| Nov | 4.13 | 4.58 | -0.45 |
| Dec | 4.41 | 5.45 | -1.04 |
52.06 | 57.90 | -5.84 |