| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.21 | 4.57 | -0.36 |
| Feb | 2.74 | 3.04 | -0.30 |
| Mar | 3.09 | 3.30 | -0.21 |
| Apr | 3.53 | 3.97 | -0.44 |
| May | 4.54 | 4.58 | -0.04 |
| Jun | 5.14 | 5.51 | -0.37 |
| Jul | 4.17 | 4.42 | -0.25 |
| Aug | 5.15 | 5.85 | -0.70 |
| Sep | 5.84 | 5.99 | -0.15 |
| Oct | 4.87 | 5.11 | -0.24 |
| Nov | 4.15 | 4.50 | -0.35 |
| Dec | 4.10 | 4.63 | -0.53 |
51.53 | 55.47 | -3.94 |