| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.90 | 0.92 | -0.02 |
| Feb | 0.84 | 0.93 | -0.09 |
| Mar | 1.35 | 1.43 | -0.08 |
| Apr | 2.44 | 2.56 | -0.12 |
| May | 3.20 | 3.29 | -0.09 |
| Jun | 4.27 | 4.27 | 0.00 |
| Jul | 3.93 | 3.96 | -0.03 |
| Aug | 3.58 | 3.74 | -0.16 |
| Sep | 3.18 | 3.27 | -0.09 |
| Oct | 2.89 | 2.97 | -0.08 |
| Nov | 1.70 | 1.82 | -0.12 |
| Dec | 1.25 | 1.41 | -0.16 |
29.53 | 30.57 | -1.04 |