| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.43 | 0.44 | -0.01 |
| Feb | 0.40 | 0.41 | -0.01 |
| Mar | 1.10 | 1.14 | -0.04 |
| Apr | 1.61 | 1.56 | 0.05 |
| May | 2.23 | 2.27 | -0.04 |
| Jun | 2.95 | 2.89 | 0.06 |
| Jul | 3.03 | 2.87 | 0.16 |
| Aug | 2.82 | 2.89 | -0.07 |
| Sep | 1.32 | 1.37 | -0.05 |
| Oct | 1.66 | 1.66 | 0.00 |
| Nov | 0.55 | 0.56 | -0.01 |
| Dec | 0.64 | 0.75 | -0.11 |
18.74 | 18.81 | -0.07 |