| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.09 | 3.39 | -0.30 |
| Feb | 2.77 | 2.97 | -0.20 |
| Mar | 3.97 | 4.23 | -0.26 |
| Apr | 3.38 | 3.57 | -0.19 |
| May | 3.38 | 3.84 | -0.46 |
| Jun | 4.16 | 4.15 | 0.01 |
| Jul | 4.43 | 4.17 | 0.26 |
| Aug | 4.51 | 4.70 | -0.19 |
| Sep | 4.05 | 4.25 | -0.20 |
| Oct | 3.80 | 4.02 | -0.22 |
| Nov | 3.18 | 3.25 | -0.07 |
| Dec | 3.83 | 4.00 | -0.17 |
44.55 | 46.54 | -1.99 |