| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.49 | 2.73 | -0.24 |
| Feb | 2.04 | 2.14 | -0.10 |
| Mar | 2.76 | 2.78 | -0.02 |
| Apr | 3.92 | 3.87 | 0.05 |
| May | 4.31 | 4.38 | -0.07 |
| Jun | 4.89 | 4.86 | 0.03 |
| Jul | 4.54 | 4.51 | 0.03 |
| Aug | 3.52 | 3.41 | 0.11 |
| Sep | 2.99 | 2.98 | 0.01 |
| Oct | 3.11 | 3.05 | 0.06 |
| Nov | 3.02 | 3.11 | -0.09 |
| Dec | 2.47 | 2.54 | -0.07 |
40.06 | 40.36 | -0.30 |