| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 8.09 | 7.73 | 0.36 |
| Feb | 7.85 | 7.62 | 0.23 |
| Mar | 7.19 | 7.00 | 0.19 |
| Apr | 3.79 | 3.59 | 0.20 |
| May | 2.29 | 2.15 | 0.14 |
| Jun | 0.68 | 0.67 | 0.01 |
| Jul | 0.01 | 0.01 | 0.00 |
| Aug | 0.07 | 0.08 | -0.01 |
| Sep | 0.42 | 0.34 | 0.08 |
| Oct | 2.25 | 2.10 | 0.15 |
| Nov | 4.88 | 4.73 | 0.15 |
| Dec | 8.68 | 8.09 | 0.59 |
46.20 | 44.11 | 2.09 |