| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.52 | 3.58 | -0.06 |
| Feb | 3.61 | 3.75 | -0.14 |
| Mar | 4.95 | 5.05 | -0.10 |
| Apr | 5.37 | 5.24 | 0.13 |
| May | 5.56 | 5.41 | 0.15 |
| Jun | 3.62 | 3.55 | 0.07 |
| Jul | 3.86 | 3.87 | -0.01 |
| Aug | 3.83 | 3.83 | 0.00 |
| Sep | 3.65 | 3.61 | 0.04 |
| Oct | 4.06 | 4.07 | -0.01 |
| Nov | 4.95 | 4.97 | -0.02 |
| Dec | 4.48 | 4.64 | -0.16 |
51.46 | 51.57 | -0.11 |