| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.32 | 3.46 | -0.14 |
| Feb | 2.79 | 2.84 | -0.05 |
| Mar | 4.03 | 4.09 | -0.06 |
| Apr | 4.01 | 4.06 | -0.05 |
| May | 3.78 | 3.86 | -0.08 |
| Jun | 4.48 | 4.54 | -0.06 |
| Jul | 4.55 | 4.50 | 0.05 |
| Aug | 4.46 | 4.60 | -0.14 |
| Sep | 4.23 | 4.18 | 0.05 |
| Oct | 4.42 | 4.50 | -0.08 |
| Nov | 3.64 | 3.60 | 0.04 |
| Dec | 4.12 | 4.25 | -0.13 |
47.83 | 48.48 | -0.65 |