| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.41 | 0.39 | 0.02 |
| Feb | 0.42 | 0.42 | 0.00 |
| Mar | 1.04 | 1.00 | 0.04 |
| Apr | 1.47 | 1.50 | -0.03 |
| May | 2.24 | 2.29 | -0.05 |
| Jun | 2.94 | 2.77 | 0.17 |
| Jul | 3.01 | 3.04 | -0.03 |
| Aug | 2.95 | 2.87 | 0.08 |
| Sep | 1.18 | 1.27 | -0.09 |
| Oct | 1.50 | 1.50 | 0.00 |
| Nov | 0.54 | 0.53 | 0.01 |
| Dec | 0.53 | 0.62 | -0.09 |
18.23 | 18.20 | 0.03 |