| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.60 | 1.55 | 0.05 |
| Feb | 1.18 | 1.14 | 0.04 |
| Mar | 1.83 | 1.74 | 0.09 |
| Apr | 3.02 | 3.01 | 0.01 |
| May | 3.43 | 3.34 | 0.09 |
| Jun | 3.89 | 3.77 | 0.12 |
| Jul | 3.55 | 3.48 | 0.07 |
| Aug | 3.35 | 3.34 | 0.01 |
| Sep | 3.25 | 3.11 | 0.14 |
| Oct | 3.05 | 3.03 | 0.02 |
| Nov | 2.19 | 2.13 | 0.06 |
| Dec | 1.82 | 1.72 | 0.10 |
32.16 | 31.36 | 0.80 |