| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.04 | 3.13 | -0.09 |
| Feb | 2.70 | 2.85 | -0.15 |
| Mar | 3.98 | 4.06 | -0.08 |
| Apr | 3.46 | 3.52 | -0.06 |
| May | 4.01 | 4.25 | -0.24 |
| Jun | 4.23 | 4.20 | 0.03 |
| Jul | 4.47 | 4.50 | -0.03 |
| Aug | 4.31 | 4.11 | 0.20 |
| Sep | 4.44 | 4.50 | -0.06 |
| Oct | 4.02 | 4.15 | -0.13 |
| Nov | 3.16 | 3.24 | -0.08 |
| Dec | 3.71 | 3.91 | -0.20 |
45.53 | 46.42 | -0.89 |