Beacon
United States · Northeast US
Year-round range: 23°F to 84°F
September
Excellent conditions this month
Your monthly fit score
Comfort fit by month.
Climate details▼
Temperature
Average highs and lows.
September has comfortable temperatures — not too hot, not too cold.
Rainfall
Monthly rain and rain days.
September is one of the wetter months — pack rain gear.
Sunshine
Average hours of bright sun per day.
September has decent sunshine — a mix of sun and cloud.
Clear sky
Clear-sky share is the inverse of average cloud cover (100% minus cloud cover). Band labels follow standard meteorological categories; distribution within each band varies by day.
Air comfort by month
Humidity and heat feel by month.
September is mostly comfortable — low heat and humidity pressure.
Time-of-day patterns
Typical hourly rhythm for September.
Temperature by hour
Temperature by hour and month
Typical temperature through the day across the year (1996-2025 normals, local time). Shaded cells are nighttime.
In September, afternoons reach about 74° and nights settle near 60°.
▶Full month-by-month data
| Month | High °F | Low °F | Rain days | Rain (in) | Sun h/day | Humidity |
|---|---|---|---|---|---|---|
| Jan | 37°F | 23°F | 11 | 3.4in | 4.7h | 66.42857142857142% |
| Feb | 40°F | 24°F | 9 | 2.8in | 5.4h | 64.14285714285714% |
| Mar | 49°F | 31°F | 11 | 3.9in | 6h | 62.71428571428571% |
| Apr | 60°F | 41°F | 12 | 3.9in | 6.6h | 62.857142857142854% |
| May | 70°F | 51°F | 12 | 4.4in | 7h | 70% |
| Jun | 79°F | 61°F | 11 | 4.0in | 7.8h | 71.28571428571428% |
| Jul | 84°F | 66°F | 11 | 4.3in | 8.4h | 70.14285714285714% |
| Aug | 82°F | 65°F | 10 | 4.1in | 7.8h | 70.85714285714286% |
| Sep | 75°F | 59°F | 10 | 4.4in | 7.2h | 73% |
| Oct | 63°F | 48°F | 11 | 4.3in | 6.3h | 71.71428571428571% |
| Nov | 52°F | 38°F | 10 | 3.8in | 5.2h | 69.85714285714286% |
| Dec | 42°F | 29°F | 11 | 3.7in | 4.2h | 69.42857142857143% |
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Planning notes
Expect some rain.