| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.04 | 3.15 | -0.11 |
| Feb | 2.73 | 2.81 | -0.08 |
| Mar | 4.02 | 4.13 | -0.11 |
| Apr | 3.45 | 3.51 | -0.06 |
| May | 3.89 | 4.14 | -0.25 |
| Jun | 4.15 | 4.36 | -0.21 |
| Jul | 4.49 | 4.52 | -0.03 |
| Aug | 4.43 | 4.19 | 0.24 |
| Sep | 4.50 | 4.54 | -0.04 |
| Oct | 3.99 | 4.20 | -0.21 |
| Nov | 3.17 | 3.25 | -0.08 |
| Dec | 3.72 | 3.90 | -0.18 |
45.58 | 46.70 | -1.12 |