| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.51 | 3.58 | -0.07 |
| Feb | 2.70 | 3.01 | -0.31 |
| Mar | 3.79 | 3.99 | -0.20 |
| Apr | 3.93 | 4.01 | -0.08 |
| May | 3.89 | 4.09 | -0.20 |
| Jun | 4.69 | 4.87 | -0.18 |
| Jul | 4.98 | 5.06 | -0.08 |
| Aug | 4.56 | 5.02 | -0.46 |
| Sep | 4.82 | 4.85 | -0.03 |
| Oct | 4.36 | 4.50 | -0.14 |
| Nov | 3.54 | 3.57 | -0.03 |
| Dec | 3.98 | 4.17 | -0.19 |
48.75 | 50.72 | -1.97 |