| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.74 | 0.70 | 0.04 |
| Feb | 0.82 | 0.79 | 0.03 |
| Mar | 1.72 | 1.63 | 0.09 |
| Apr | 3.10 | 2.96 | 0.14 |
| May | 4.35 | 4.20 | 0.15 |
| Jun | 4.81 | 4.87 | -0.06 |
| Jul | 3.77 | 3.77 | 0.00 |
| Aug | 3.99 | 3.63 | 0.36 |
| Sep | 3.22 | 3.13 | 0.09 |
| Oct | 2.44 | 2.40 | 0.04 |
| Nov | 1.54 | 1.28 | 0.26 |
| Dec | 0.87 | 0.99 | -0.12 |
31.37 | 30.35 | 1.02 |