| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.08 | 4.09 | -0.01 |
| Feb | 3.92 | 3.78 | 0.14 |
| Mar | 3.00 | 3.05 | -0.05 |
| Apr | 1.66 | 1.65 | 0.01 |
| May | 1.17 | 0.89 | 0.28 |
| Jun | 0.23 | 0.22 | 0.01 |
| Jul | 0.01 | 0.00 | 0.01 |
| Aug | 0.02 | 0.03 | -0.01 |
| Sep | 0.08 | 0.12 | -0.04 |
| Oct | 0.95 | 1.03 | -0.08 |
| Nov | 1.93 | 1.90 | 0.03 |
| Dec | 3.39 | 3.76 | -0.37 |
20.44 | 20.52 | -0.08 |