| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.78 | 0.82 | -0.04 |
| Feb | 0.87 | 0.89 | -0.02 |
| Mar | 1.74 | 1.70 | 0.04 |
| Apr | 3.15 | 2.97 | 0.18 |
| May | 4.34 | 4.19 | 0.15 |
| Jun | 5.06 | 5.21 | -0.15 |
| Jul | 3.91 | 3.91 | 0.00 |
| Aug | 4.01 | 3.94 | 0.07 |
| Sep | 3.23 | 3.26 | -0.03 |
| Oct | 2.51 | 2.49 | 0.02 |
| Nov | 1.52 | 1.41 | 0.11 |
| Dec | 1.02 | 1.08 | -0.06 |
32.14 | 31.87 | 0.27 |