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Groton, CT vs New London, CT weather comparison

Groton

CT

Groton and New London have remarkably similar climates.

The year at a glance

Averages from 30 years of climate history, 1991-2020

Annual weather statistics for Groton, CT and New London, CT
GrotonMetricNew London
200 daysSunny daysclear or partly cloudy skies200 days
46 inPrecipitationper year46 in
123 daysWet daysrain or snow per year123 days
25 inSnowfallper year25 in
2 daysHot daysabove 90 °F3 days
101 daysFreezing nightsat or below 32 °F100 days
73%Humidityaverage relative73%
52 °FAverage temperatureyear round52 °F

Monthly temperatures

Average daily high and low for each month, in °F. The gap between the two lines is what an ordinary day feels like across the year.

GrotonNew London

Daily highs

406080JanMarMayJulSepNovGroton, Jan: 38 °FGroton, Feb: 40 °FGroton, Mar: 47 °FGroton, Apr: 56 °FGroton, May: 65 °FGroton, Jun: 74 °FGroton, Jul: 80 °FGroton, Aug: 79 °FGroton, Sep: 74 °FGroton, Oct: 63 °FGroton, Nov: 53 °FGroton, Dec: 44 °FNew London, Jan: 38 °FNew London, Feb: 40 °FNew London, Mar: 47 °FNew London, Apr: 56 °FNew London, May: 65 °FNew London, Jun: 74 °FNew London, Jul: 80 °FNew London, Aug: 80 °FNew London, Sep: 74 °FNew London, Oct: 63 °FNew London, Nov: 53 °FNew London, Dec: 44 °F

Daily lows

4060JanMarMayJulSepNovGroton, Jan: 23 °FGroton, Feb: 25 °FGroton, Mar: 31 °FGroton, Apr: 39 °FGroton, May: 49 °FGroton, Jun: 58 °FGroton, Jul: 65 °FGroton, Aug: 64 °FGroton, Sep: 57 °FGroton, Oct: 46 °FGroton, Nov: 37 °FGroton, Dec: 29 °FNew London, Jan: 24 °FNew London, Feb: 25 °FNew London, Mar: 31 °FNew London, Apr: 40 °FNew London, May: 49 °FNew London, Jun: 59 °FNew London, Jul: 65 °FNew London, Aug: 64 °FNew London, Sep: 57 °FNew London, Oct: 46 °FNew London, Nov: 37 °FNew London, Dec: 29 °F
View monthly temperatures as a table
Monthly temperatures (°F)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Groton high384047566574807974635344
New London high384047566574808074635344
Groton low232531394958656457463729
New London low242531404959656457463729

Monthly precipitation

Total rain plus melted snow for each month, in inches. Taller bars mean wetter months.

GrotonNew London
0.02.04.0JanMarMayJulSepNovGroton, Jan: 3.6 inGroton, Feb: 3.2 inGroton, Mar: 4.4 inGroton, Apr: 3.9 inGroton, May: 3.2 inGroton, Jun: 3.8 inGroton, Jul: 3.5 inGroton, Aug: 4.2 inGroton, Sep: 4.0 inGroton, Oct: 4.2 inGroton, Nov: 3.7 inGroton, Dec: 4.5 inNew London, Jan: 3.6 inNew London, Feb: 3.2 inNew London, Mar: 4.4 inNew London, Apr: 3.9 inNew London, May: 3.2 inNew London, Jun: 3.8 inNew London, Jul: 3.5 inNew London, Aug: 4.2 inNew London, Sep: 4.0 inNew London, Oct: 4.2 inNew London, Nov: 3.7 inNew London, Dec: 4.5 in
View monthly precipitation as a table
Monthly precipitation (inches)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Groton3.63.24.43.93.23.83.54.24.04.23.74.5
New London3.63.24.43.93.23.83.54.24.04.23.74.5

Monthly sunny days

Days each month with clear or partly cloudy skies, so compare the same month between cities.

GrotonNew London
051015JanMarMayJulSepNovGroton, Jan: 18 daysGroton, Feb: 16 daysGroton, Mar: 16 daysGroton, Apr: 16 daysGroton, May: 15 daysGroton, Jun: 15 daysGroton, Jul: 18 daysGroton, Aug: 18 daysGroton, Sep: 17 daysGroton, Oct: 18 daysGroton, Nov: 17 daysGroton, Dec: 16 daysNew London, Jan: 18 daysNew London, Feb: 16 daysNew London, Mar: 16 daysNew London, Apr: 16 daysNew London, May: 15 daysNew London, Jun: 15 daysNew London, Jul: 18 daysNew London, Aug: 18 daysNew London, Sep: 17 daysNew London, Oct: 18 daysNew London, Nov: 17 daysNew London, Dec: 16 days
View monthly sunny days as a table
Monthly sunny days (days)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Groton181616161515181817181716
New London181616161515181817181716

Keep comparing

Nearby cities and popular picks for each side of this matchup. Any two cities can be compared from the home page.

Groton vs another city

See the full Groton, CT climate profile

More Connecticut cities

New London vs another city

See the full New London, CT climate profile

More Connecticut cities

About this data

Every figure on this page is a 30 year average computed from daily climate history for 1991-2020, using each city's own coordinates. Wet days count days with measurable precipitation, calibrated against the wet day counts in NOAA's published climate normals. Sunny days count clear plus partly cloudy days, defined as average cloud cover of 63 percent or less and calibrated against NOAA's published sky cover tables. Snowfall figures are model estimates anchored to NOAA station measurements near each city.

Weather data by Open-Meteo.com (CC BY 4.0). Contains modified Copernicus Climate Change Service information (ERA5, ERA5-Land).