| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.68 | 4.05 | -0.37 |
| Feb | 3.84 | 3.99 | -0.15 |
| Mar | 4.24 | 4.38 | -0.14 |
| Apr | 3.99 | 4.19 | -0.20 |
| May | 4.27 | 4.36 | -0.09 |
| Jun | 4.24 | 4.43 | -0.19 |
| Jul | 4.77 | 5.03 | -0.26 |
| Aug | 3.88 | 4.10 | -0.22 |
| Sep | 3.08 | 3.14 | -0.06 |
| Oct | 2.88 | 2.68 | 0.20 |
| Nov | 3.20 | 2.98 | 0.22 |
| Dec | 4.00 | 4.29 | -0.29 |
46.07 | 47.62 | -1.55 |