| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.81 | 3.18 | -0.37 |
| Feb | 2.39 | 2.91 | -0.52 |
| Mar | 3.01 | 3.41 | -0.40 |
| Apr | 3.56 | 3.83 | -0.27 |
| May | 3.96 | 3.98 | -0.02 |
| Jun | 4.41 | 4.83 | -0.42 |
| Jul | 4.20 | 4.50 | -0.30 |
| Aug | 3.95 | 4.14 | -0.19 |
| Sep | 3.76 | 3.87 | -0.11 |
| Oct | 4.34 | 4.62 | -0.28 |
| Nov | 3.44 | 3.91 | -0.47 |
| Dec | 3.38 | 3.90 | -0.52 |
43.21 | 47.08 | -3.87 |