| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.66 | 1.77 | -0.11 |
| Feb | 1.96 | 1.99 | -0.03 |
| Mar | 2.73 | 2.65 | 0.08 |
| Apr | 4.13 | 4.02 | 0.11 |
| May | 5.40 | 5.22 | 0.18 |
| Jun | 4.91 | 5.08 | -0.17 |
| Jul | 4.41 | 4.56 | -0.15 |
| Aug | 4.07 | 3.95 | 0.12 |
| Sep | 3.75 | 3.79 | -0.04 |
| Oct | 3.38 | 3.35 | 0.03 |
| Nov | 2.59 | 2.62 | -0.03 |
| Dec | 1.90 | 1.88 | 0.02 |
40.89 | 40.88 | 0.01 |