| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.82 | 3.89 | -0.07 |
| Feb | 3.57 | 3.64 | -0.07 |
| Mar | 3.94 | 4.13 | -0.19 |
| Apr | 3.08 | 3.13 | -0.05 |
| May | 3.27 | 3.42 | -0.15 |
| Jun | 4.86 | 4.77 | 0.09 |
| Jul | 4.42 | 4.73 | -0.31 |
| Aug | 4.57 | 4.92 | -0.35 |
| Sep | 3.98 | 4.18 | -0.20 |
| Oct | 3.24 | 3.43 | -0.19 |
| Nov | 3.04 | 3.23 | -0.19 |
| Dec | 3.95 | 3.99 | -0.04 |
45.74 | 47.46 | -1.72 |