| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.01 | 4.23 | -0.22 |
| Feb | 3.53 | 3.63 | -0.10 |
| Mar | 4.98 | 5.12 | -0.14 |
| Apr | 4.56 | 4.62 | -0.06 |
| May | 3.50 | 3.51 | -0.01 |
| Jun | 4.10 | 4.01 | 0.09 |
| Jul | 3.30 | 3.40 | -0.10 |
| Aug | 3.65 | 3.74 | -0.09 |
| Sep | 4.01 | 4.04 | -0.03 |
| Oct | 4.82 | 4.85 | -0.03 |
| Nov | 4.27 | 4.35 | -0.08 |
| Dec | 4.81 | 5.09 | -0.28 |
49.54 | 50.59 | -1.05 |