| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.68 | 0.75 | -0.07 |
| Feb | 0.78 | 0.87 | -0.09 |
| Mar | 1.45 | 1.44 | 0.01 |
| Apr | 2.81 | 2.83 | -0.02 |
| May | 4.07 | 4.13 | -0.06 |
| Jun | 4.58 | 4.54 | 0.04 |
| Jul | 3.86 | 3.86 | 0.00 |
| Aug | 4.09 | 4.17 | -0.08 |
| Sep | 3.35 | 3.26 | 0.09 |
| Oct | 2.57 | 2.53 | 0.04 |
| Nov | 1.42 | 1.48 | -0.06 |
| Dec | 1.02 | 1.11 | -0.09 |
30.68 | 30.97 | -0.29 |