| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.14 | 3.25 | -0.11 |
| Feb | 3.04 | 3.10 | -0.06 |
| Mar | 3.90 | 3.95 | -0.05 |
| Apr | 3.98 | 4.00 | -0.02 |
| May | 4.43 | 4.40 | 0.03 |
| Jun | 4.20 | 4.41 | -0.21 |
| Jul | 4.57 | 4.52 | 0.05 |
| Aug | 3.41 | 3.37 | 0.04 |
| Sep | 3.45 | 3.39 | 0.06 |
| Oct | 3.01 | 3.10 | -0.09 |
| Nov | 2.83 | 2.89 | -0.06 |
| Dec | 3.38 | 3.43 | -0.05 |
43.34 | 43.81 | -0.47 |