United States · 1991–2020 normal
Groton in
August.
Typical August weather in Groton: 26.3°C by day, 17.8°C at night, 105 mm of rain over 7 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high26.3°C
Typical low17.8°C
Rain105 mm
Wet days7
Comfort score 74 this month (June leads the year at 87). Daylight is calculated as 13 h 50 from latitude 41.35°. Open-water sea temperature is 21.4°C (25 km from the place centre).
Event window
Warm sea in August
The nearest open-water NOAA OISST 1991–2020 cell averages 21.4°C in August. A sheltered bay can run warmer than that open-water cell.
The evidence behind this page
One month,
from the same station.
- Place identity
- GeoNames 4835461
- NOAA station
- USC00063207 · GROTON
- Station distance
- 3.4 km from the place centre
- Coverage
- Strong coverage · 25 usable years
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.