| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.30 | 2.36 | -0.06 |
| Feb | 1.96 | 2.07 | -0.11 |
| Mar | 2.87 | 2.78 | 0.09 |
| Apr | 4.05 | 4.05 | 0.00 |
| May | 4.41 | 4.48 | -0.07 |
| Jun | 4.74 | 4.75 | -0.01 |
| Jul | 4.21 | 4.27 | -0.06 |
| Aug | 3.41 | 3.38 | 0.03 |
| Sep | 3.07 | 3.12 | -0.05 |
| Oct | 3.34 | 3.32 | 0.02 |
| Nov | 3.24 | 3.17 | 0.07 |
| Dec | 2.41 | 2.42 | -0.01 |
40.01 | 40.17 | -0.16 |