| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.71 | 0.80 | -0.09 |
| Feb | 0.75 | 0.86 | -0.11 |
| Mar | 1.44 | 1.48 | -0.04 |
| Apr | 2.81 | 2.83 | -0.02 |
| May | 4.03 | 4.19 | -0.16 |
| Jun | 4.79 | 4.63 | 0.16 |
| Jul | 3.89 | 3.94 | -0.05 |
| Aug | 4.14 | 4.35 | -0.21 |
| Sep | 3.37 | 3.17 | 0.20 |
| Oct | 2.47 | 2.44 | 0.03 |
| Nov | 1.45 | 1.49 | -0.04 |
| Dec | 1.07 | 1.14 | -0.07 |
30.92 | 31.32 | -0.40 |