| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.78 | 0.73 | 0.05 |
| Feb | 0.80 | 0.83 | -0.03 |
| Mar | 1.50 | 1.49 | 0.01 |
| Apr | 2.77 | 2.80 | -0.03 |
| May | 3.99 | 3.92 | 0.07 |
| Jun | 4.30 | 4.32 | -0.02 |
| Jul | 4.39 | 4.26 | 0.13 |
| Aug | 3.98 | 4.05 | -0.07 |
| Sep | 3.31 | 3.26 | 0.05 |
| Oct | 2.88 | 2.87 | 0.01 |
| Nov | 1.61 | 1.56 | 0.05 |
| Dec | 1.10 | 1.08 | 0.02 |
31.41 | 31.17 | 0.24 |