| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.05 | 4.06 | -0.01 |
| Feb | 4.40 | 4.46 | -0.06 |
| Mar | 4.71 | 4.76 | -0.05 |
| Apr | 5.06 | 4.99 | 0.07 |
| May | 5.26 | 5.37 | -0.11 |
| Jun | 4.17 | 4.24 | -0.07 |
| Jul | 4.46 | 4.54 | -0.08 |
| Aug | 3.83 | 3.74 | 0.09 |
| Sep | 3.65 | 3.78 | -0.13 |
| Oct | 3.68 | 3.63 | 0.05 |
| Nov | 3.71 | 3.71 | 0.00 |
| Dec | 4.71 | 4.80 | -0.09 |
51.69 | 52.08 | -0.39 |