| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.45 | 0.46 | -0.01 |
| Feb | 0.44 | 0.48 | -0.04 |
| Mar | 0.74 | 0.74 | 0.00 |
| Apr | 1.57 | 1.72 | -0.15 |
| May | 2.23 | 2.50 | -0.27 |
| Jun | 2.05 | 2.07 | -0.02 |
| Jul | 1.14 | 1.07 | 0.07 |
| Aug | 0.84 | 0.62 | 0.22 |
| Sep | 1.17 | 1.07 | 0.10 |
| Oct | 1.24 | 1.30 | -0.06 |
| Nov | 0.57 | 0.56 | 0.01 |
| Dec | 0.48 | 0.54 | -0.06 |
12.92 | 13.13 | -0.21 |