5,260 ft · Franconia Range · month-by-month from 271 observed days
August was the reliable window: 68% of observed days rated Good or Moderate. January was the toughest month, with 100% of days at Difficult or worse.
| Month | Days observed | Good/Moderate | Recurring hazards |
|---|---|---|---|
| January | 31 | 0% | severe wind chill, dangerous wind, ice |
| February | 28 | 0% | severe wind chill, dangerous wind, ice |
| March | 29 | 3% | severe wind chill, dangerous wind, ice, snow |
| April | 30 | 17% | ice, dangerous wind, severe wind chill, snow |
| May | 31 | 10% | severe wind chill, dangerous wind, ice, snow |
| June | 30 | 57% | severe wind chill, dangerous wind, slick ledges |
| July | 31 | 55% | severe wind chill, dangerous wind |
| August | 31 | 68% | mud, dangerous wind, severe wind chill, slick ledges |
| September |
Right now on Mount Lafayette
Moderateupdated Sep 21, 4 AMAugust was the reliable window: 68% of observed days rated Good or Moderate. January was the toughest month, with 100% of days at Difficult or worse.
Yes, with winter gear and experience: in our observations, 99% of December-March days rated Difficult or Dangerous. Full winter traction, insulation, and a hard turnaround plan are the baseline; check live conditions the morning you go.
57% of observed September days rated Good or Moderate; recurring hazards were severe wind chill, mud, dangerous wind. Today's actual report is on the live conditions page.
Methodology: severity shares are observed, not forecast. Each day's rating is the consensus of our AI-synthesized condition reports for Mount Lafayette that day, collected since December 2025 (271 days so far). Months keep filling in as the archive grows. Pair the history with the live report and a summit forecast before you commit to a drive.
Bar shows the share of observed days at each severity; the number is the share rated Good or Moderate. Good · Moderate · Difficult · Dangerous
| 21 |
| 57% |
| severe wind chill, mud, dangerous wind, slick ledges |
| December | 9 | 0% | dangerous wind, severe wind chill, ice |