2,630 ft · Sandwich Range · month-by-month from 251 observed days
2,630 ft | Sandwich | 0 routes
February through September is the reliable window: 90% of observed days rated Good or Moderate.
Bar shows the share of observed days at each severity; the number is the share rated Good or Moderate. Good · Moderate · Difficult · Dangerous
| Month | Days observed | Good/Moderate | Recurring hazards |
|---|---|---|---|
| February | 27 | 74% | severe wind chill, ice, snow |
| March | 29 | 72% | ice, snow, severe wind chill, mud |
| April | 30 | 80% | mud, ice, severe wind chill, snow |
| May | 31 | 97% | mud, ice, severe wind chill |
| June | 30 | 100% | mud, ice |
| July | 31 | 100% | mud, ice |
| August | 31 | 100% | mud, ice |
| September | 30 | 100% | mud, slick ledges |
| October | 12 | 100% | slick ledges, severe wind chill, mud |
Right now on Mount Israel
Moderateupdated Oct 17, 3 AMFebruary through September is the reliable window: 90% of observed days rated Good or Moderate.
Yes, with winter gear and experience: in our observations, 27% 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.
Methodology: severity shares are observed, not forecast. Each day's rating is the consensus of our AI-synthesized condition reports for Mount Israel that day, collected since February 2026 (251 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.