| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 6.49 | 5.97 | 0.52 |
| Feb | 4.96 | 4.75 | 0.21 |
| Mar | 5.37 | 5.00 | 0.37 |
| Apr | 4.73 | 4.54 | 0.19 |
| May | 3.22 | 3.30 | -0.08 |
| Jun | 1.84 | 1.85 | -0.01 |
| Jul | 0.38 | 0.37 | 0.01 |
| Aug | 0.52 | 0.51 | 0.01 |
| Sep | 1.57 | 1.56 | 0.01 |
| Oct | 3.86 | 3.62 | 0.24 |
| Nov | 6.80 | 6.42 | 0.38 |
| Dec | 7.77 | 6.95 | 0.82 |
47.51 | 44.84 | 2.67 |