| < December >
|Normal Max/ High Temperature
|Min/ Low Temperature
|Average Daylight per day
|Sun altitude at solar noon on the 21st day.
- The average temperature in Groton, Ct in December is very cool at 0.6 °C (33.08 °F).
- Afternoons can be cool with average high temperatures reaching 5.4 °C (41.7 °F).
- Overnight temperatures are generally slightly cold with an average low of -4.3 °C (24.3 °F).
- In December the variation/ range of diurnal average temperatures is 9.7 °C (17.5 °F).
- The weather in December is hardly dry. Circa 118.1mm (4.6in) of H2O is transfered.
- The shortest day is 9:13 long and the longest day is 9:25 long with an average length of 9:16.
Check the distance to and compare the Groton, Ct December averages with somewhere beginning with:
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Weather Trend Graph for December in Groton, Ct, Usa
Navigate to December Weather in Locations Surrounding Groton, Ct:
- Hartford/ Bradley, Ct, Usa - 118.4 kms (73.6 miles) NNW
- Storrs, Ct, Usa - 92.3 kms (57.3 miles) NNW
- Bridgeport/ Sikorsky Memorial, Ct, Usa - 96.8 kms (60.1 miles) WNW
- Setauket Strong, Ny, Usa - 83.9 kms (52.1 miles) W
- Block Island, Ri, Usa - 95.4 kms (59.3 miles) WSW