| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.41 | 0.45 | -0.04 |
| Feb | 0.40 | 0.44 | -0.04 |
| Mar | 0.66 | 0.74 | -0.08 |
| Apr | 1.07 | 1.04 | 0.03 |
| May | 2.49 | 2.57 | -0.08 |
| Jun | 3.46 | 3.73 | -0.27 |
| Jul | 3.30 | 3.34 | -0.04 |
| Aug | 2.31 | 2.51 | -0.20 |
| Sep | 1.88 | 1.92 | -0.04 |
| Oct | 1.43 | 1.58 | -0.15 |
| Nov | 0.60 | 0.69 | -0.09 |
| Dec | 0.56 | 0.65 | -0.09 |
18.57 | 19.66 | -1.09 |