| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 5.58 | 5.81 | -0.23 |
| Feb | 5.08 | 5.46 | -0.38 |
| Mar | 4.14 | 4.60 | -0.46 |
| Apr | 1.37 | 1.57 | -0.20 |
| May | 0.48 | 0.60 | -0.12 |
| Jun | 0.06 | 0.12 | -0.06 |
| Jul | 0.02 | 0.05 | -0.03 |
| Aug | 0.01 | 0.02 | -0.01 |
| Sep | 0.08 | 0.10 | -0.02 |
| Oct | 1.02 | 1.29 | -0.27 |
| Nov | 2.01 | 1.96 | 0.05 |
| Dec | 4.16 | 4.30 | -0.14 |
24.01 | 25.88 | -1.87 |