| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.42 | 2.45 | -0.03 |
| Feb | 2.04 | 2.12 | -0.08 |
| Mar | 2.31 | 2.36 | -0.05 |
| Apr | 3.56 | 3.51 | 0.05 |
| May | 4.19 | 4.20 | -0.01 |
| Jun | 3.98 | 3.94 | 0.04 |
| Jul | 3.81 | 3.72 | 0.09 |
| Aug | 3.61 | 3.93 | -0.32 |
| Sep | 3.23 | 3.07 | 0.16 |
| Oct | 3.08 | 2.97 | 0.11 |
| Nov | 2.99 | 2.94 | 0.05 |
| Dec | 2.34 | 2.37 | -0.03 |
37.56 | 37.58 | -0.02 |