| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 7.20 | 6.73 | 0.47 |
| Feb | 5.69 | 5.00 | 0.69 |
| Mar | 5.75 | 5.08 | 0.67 |
| Apr | 3.74 | 3.18 | 0.56 |
| May | 2.27 | 2.09 | 0.18 |
| Jun | 1.19 | 1.14 | 0.05 |
| Jul | 0.32 | 0.30 | 0.02 |
| Aug | 0.37 | 0.34 | 0.03 |
| Sep | 1.33 | 1.32 | 0.01 |
| Oct | 3.68 | 3.41 | 0.27 |
| Nov | 6.92 | 6.10 | 0.82 |
| Dec | 8.65 | 7.97 | 0.68 |
47.11 | 42.66 | 4.45 |