| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.97 | 4.07 | -0.10 |
| Feb | 3.55 | 3.52 | 0.03 |
| Mar | 4.80 | 4.84 | -0.04 |
| Apr | 4.38 | 4.62 | -0.24 |
| May | 3.47 | 3.49 | -0.02 |
| Jun | 4.05 | 4.21 | -0.16 |
| Jul | 3.40 | 3.49 | -0.09 |
| Aug | 3.82 | 3.89 | -0.07 |
| Sep | 4.05 | 4.06 | -0.01 |
| Oct | 4.74 | 4.91 | -0.17 |
| Nov | 4.18 | 4.20 | -0.02 |
| Dec | 4.78 | 5.00 | -0.22 |
49.19 | 50.30 | -1.11 |