| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.00 | 1.46 | -0.46 |
| Feb | 0.98 | 1.18 | -0.20 |
| Mar | 1.22 | 1.40 | -0.18 |
| Apr | 2.19 | 2.35 | -0.16 |
| May | 2.90 | 2.99 | -0.09 |
| Jun | 3.66 | 3.77 | -0.11 |
| Jul | 3.54 | 3.51 | 0.03 |
| Aug | 2.76 | 2.89 | -0.13 |
| Sep | 3.01 | 3.39 | -0.38 |
| Oct | 3.00 | 3.37 | -0.37 |
| Nov | 1.96 | 2.36 | -0.40 |
| Dec | 1.49 | 1.93 | -0.44 |
27.71 | 30.60 | -2.89 |