| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.31 | 0.32 | -0.01 |
| Feb | 0.51 | 0.50 | 0.01 |
| Mar | 0.99 | 0.95 | 0.04 |
| Apr | 2.11 | 2.10 | 0.01 |
| May | 3.95 | 3.95 | 0.00 |
| Jun | 3.22 | 3.22 | 0.00 |
| Jul | 2.58 | 2.45 | 0.13 |
| Aug | 1.76 | 2.15 | -0.39 |
| Sep | 1.41 | 1.43 | -0.02 |
| Oct | 1.48 | 1.49 | -0.01 |
| Nov | 0.50 | 0.49 | 0.01 |
| Dec | 0.37 | 0.38 | -0.01 |
19.19 | 19.43 | -0.24 |