| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.34 | 1.31 | 0.03 |
| Feb | 1.12 | 1.09 | 0.03 |
| Mar | 1.86 | 1.80 | 0.06 |
| Apr | 3.02 | 3.06 | -0.04 |
| May | 3.54 | 3.65 | -0.11 |
| Jun | 4.49 | 4.28 | 0.21 |
| Jul | 3.83 | 3.77 | 0.06 |
| Aug | 3.51 | 3.55 | -0.04 |
| Sep | 3.50 | 3.51 | -0.01 |
| Oct | 2.95 | 2.94 | 0.01 |
| Nov | 1.97 | 1.96 | 0.01 |
| Dec | 1.66 | 1.61 | 0.05 |
32.79 | 32.53 | 0.26 |