| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.43 | 0.39 | 0.04 |
| Feb | 0.37 | 0.32 | 0.05 |
| Mar | 0.44 | 0.43 | 0.01 |
| Apr | 1.00 | 1.04 | -0.04 |
| May | 1.73 | 1.75 | -0.02 |
| Jun | 2.76 | 2.84 | -0.08 |
| Jul | 1.14 | 1.29 | -0.15 |
| Aug | 1.11 | 1.18 | -0.07 |
| Sep | 1.06 | 1.19 | -0.13 |
| Oct | 0.74 | 0.77 | -0.03 |
| Nov | 0.52 | 0.53 | -0.01 |
| Dec | 0.36 | 0.34 | 0.02 |
11.66 | 12.07 | -0.41 |