| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.03 | 3.18 | -0.15 |
| Feb | 2.43 | 2.41 | 0.02 |
| Mar | 3.47 | 3.54 | -0.07 |
| Apr | 4.27 | 4.19 | 0.08 |
| May | 4.57 | 4.58 | -0.01 |
| Jun | 4.46 | 4.57 | -0.11 |
| Jul | 4.13 | 4.22 | -0.09 |
| Aug | 3.22 | 3.23 | -0.01 |
| Sep | 3.10 | 2.88 | 0.22 |
| Oct | 2.96 | 2.90 | 0.06 |
| Nov | 3.04 | 2.95 | 0.09 |
| Dec | 3.11 | 3.07 | 0.04 |
41.79 | 41.72 | 0.07 |