| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.01 | 4.07 | -0.06 |
| Feb | 2.98 | 3.00 | -0.02 |
| Mar | 3.43 | 3.47 | -0.04 |
| Apr | 4.06 | 4.15 | -0.09 |
| May | 5.00 | 5.16 | -0.16 |
| Jun | 5.39 | 5.31 | 0.08 |
| Jul | 4.01 | 4.07 | -0.06 |
| Aug | 4.50 | 5.11 | -0.61 |
| Sep | 5.15 | 5.01 | 0.14 |
| Oct | 4.78 | 4.77 | 0.01 |
| Nov | 4.28 | 4.48 | -0.20 |
| Dec | 3.78 | 3.97 | -0.19 |
51.37 | 52.57 | -1.20 |