| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.84 | 3.84 | 0.00 |
| Feb | 3.91 | 4.10 | -0.19 |
| Mar | 4.22 | 4.26 | -0.04 |
| Apr | 3.90 | 4.02 | -0.12 |
| May | 4.28 | 4.37 | -0.09 |
| Jun | 4.07 | 4.39 | -0.32 |
| Jul | 2.69 | 2.66 | 0.03 |
| Aug | 2.66 | 2.79 | -0.13 |
| Sep | 3.32 | 3.18 | 0.14 |
| Oct | 4.67 | 4.55 | 0.12 |
| Nov | 3.64 | 3.95 | -0.31 |
| Dec | 4.34 | 4.59 | -0.25 |
45.54 | 46.70 | -1.16 |