| St. Charles, MO | Hilton Head Island, SC | United States |
Rainfall | 42.2 | 48.1 | 38.1 |
Snowfall | 14.2 | 0.1 | 27.8 |
Precipitation Days | 105.9 | 103.4 | 106.2 |
Sunny | 202 | 215 | 205 |
Avg. July High | 88.3 | 90.8 | 85.8 |
Avg. Jan. Low | 21.3 | 39.2 | 21.7 |
Comfort Index (higher=better) | 7.2 | 7.1 | 7 |
UV Index | 4.4 | 5.5 | 4.3 |
Elevation ft. | 492 | 10 | 2443 |