Heading into September, be prepared for cooler weather, shorter days and the season's first frost.
Breakdown
- Daylight hours decrease across the US in September, with northern cities losing up to 100 minutes. 24s
- Cooler nights and the first frosts are expected in northern states and the Great Lakes region. 54s
- Early snowfall is possible in the Cascades and other northern mountains by late September or early October. 1m 18s
- Significant snowfall is more likely to occur by mid-October in northern regions. 1m 22s
- The countdown to winter continues, with 118 days until its official arrival. 1m 42s