| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.97 | 3.20 | -0.23 |
| Feb | 2.42 | 2.78 | -0.36 |
| Mar | 3.24 | 3.38 | -0.14 |
| Apr | 3.41 | 3.50 | -0.09 |
| May | 3.49 | 3.67 | -0.18 |
| Jun | 4.18 | 3.88 | 0.30 |
| Jul | 4.01 | 4.25 | -0.24 |
| Aug | 4.29 | 4.39 | -0.10 |
| Sep | 4.13 | 3.85 | 0.28 |
| Oct | 4.26 | 4.28 | -0.02 |
| Nov | 3.25 | 3.28 | -0.03 |
| Dec | 3.57 | 3.82 | -0.25 |
43.22 | 44.28 | -1.06 |