| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.52 | 2.54 | -0.02 |
| Feb | 2.07 | 2.14 | -0.07 |
| Mar | 2.66 | 2.57 | 0.09 |
| Apr | 3.78 | 3.68 | 0.10 |
| May | 4.27 | 4.09 | 0.18 |
| Jun | 4.68 | 4.58 | 0.10 |
| Jul | 4.55 | 4.72 | -0.17 |
| Aug | 4.13 | 4.14 | -0.01 |
| Sep | 3.24 | 3.22 | 0.02 |
| Oct | 3.21 | 3.17 | 0.04 |
| Nov | 2.85 | 2.76 | 0.09 |
| Dec | 2.33 | 2.31 | 0.02 |
40.29 | 39.92 | 0.37 |