| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.38 | 0.42 | -0.04 |
| Feb | 0.39 | 0.40 | -0.01 |
| Mar | 0.65 | 0.71 | -0.06 |
| Apr | 1.05 | 1.00 | 0.05 |
| May | 2.52 | 2.63 | -0.11 |
| Jun | 3.56 | 3.86 | -0.30 |
| Jul | 3.25 | 3.23 | 0.02 |
| Aug | 2.31 | 2.50 | -0.19 |
| Sep | 1.88 | 1.92 | -0.04 |
| Oct | 1.41 | 1.51 | -0.10 |
| Nov | 0.60 | 0.67 | -0.07 |
| Dec | 0.54 | 0.61 | -0.07 |
18.54 | 19.46 | -0.92 |