| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.11 | 3.17 | -0.06 |
| Feb | 3.01 | 3.02 | -0.01 |
| Mar | 3.56 | 3.58 | -0.02 |
| Apr | 3.74 | 3.83 | -0.09 |
| May | 3.70 | 3.78 | -0.08 |
| Jun | 4.19 | 4.20 | -0.01 |
| Jul | 4.03 | 4.05 | -0.02 |
| Aug | 3.95 | 3.92 | 0.03 |
| Sep | 3.75 | 3.78 | -0.03 |
| Oct | 4.93 | 4.91 | 0.02 |
| Nov | 3.72 | 3.81 | -0.09 |
| Dec | 4.06 | 4.20 | -0.14 |
45.75 | 46.25 | -0.50 |