| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.83 | 4.03 | -0.20 |
| Feb | 3.82 | 3.90 | -0.08 |
| Mar | 4.53 | 4.78 | -0.25 |
| Apr | 4.58 | 4.72 | -0.14 |
| May | 4.98 | 5.28 | -0.30 |
| Jun | 5.11 | 5.24 | -0.13 |
| Jul | 5.21 | 5.35 | -0.14 |
| Aug | 3.94 | 3.90 | 0.04 |
| Sep | 3.62 | 3.76 | -0.14 |
| Oct | 3.46 | 3.38 | 0.08 |
| Nov | 3.41 | 3.39 | 0.02 |
| Dec | 4.51 | 4.80 | -0.29 |
51.00 | 52.53 | -1.53 |