| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.95 | 3.06 | -0.11 |
| Feb | 2.62 | 2.69 | -0.07 |
| Mar | 3.78 | 3.86 | -0.08 |
| Apr | 3.41 | 3.41 | 0.00 |
| May | 4.25 | 4.36 | -0.11 |
| Jun | 4.31 | 4.41 | -0.10 |
| Jul | 4.47 | 4.46 | 0.01 |
| Aug | 3.86 | 3.87 | -0.01 |
| Sep | 4.32 | 4.44 | -0.12 |
| Oct | 3.87 | 4.00 | -0.13 |
| Nov | 3.11 | 3.17 | -0.06 |
| Dec | 3.67 | 3.70 | -0.03 |
44.62 | 45.43 | -0.81 |