Old Greenwich, Connecticut, United States Climate

Weather: 5.38°C/41.68°F, Wind SW at 3.58 km/h, 53% Humidity, 0% Chance of rain

United States
(Photo by Deirdre Corcoran Foote on Unsplash)
Contents

Old Greenwich Climate Summary

Located at an elevation of None meters (0 feet) above sea level, Old Greenwich has a Humid subtropical, no dry season climate (Classification: Cfa). The district’s yearly temperature is 13.55ºC (56.39ºF) and it is 0.91% higher than United States’s averages. Old Greenwich typically receives about 47.47 millimeters (1.87 inches) of precipitation and has 44.91 rainy days (12.3% of the time) annually.

CountryUnited States
CityConnecticut
Longitude-73.5652049
Latitude41.0232624
Attitude/ElevationNonem (0ft)
Local timeFriday 03:38
Annual high temperature15.68ºC (60.22ºF)
Annual low temperature10.04ºC (50.07ºF)
Average annual precip.47.47mm (1.87in)
Warmest monthJuly (29.87ºC / 85.77ºF)
Coldest MonthJanuary (-2.34ºC / 27.79ºF)
Wettest MonthDecember (65.68mm / 2.59in)
Driest MonthJanuary (37.49mm / 1.48in)
Number of days with rainfall (≥ 1.0 mm)44.91 days (12.3%)
Days with no rain320.09000000000003 days (87.7%)
Humidity66.05%

Climate Old Greenwich: Weather By Month

MonthJanFebMarAprMayJunJulAugSepNovOctDecYear
Record high °C (°F)15.0(59.0)19.0(66.2)18.0(64.4)21.0(69.8)30.0(86.0)34.0(93.2)35.0(95.0)35.0(95.0)33.0(91.4)29.0(84.2)22.0(71.6)16.0(60.8)35.0(95.0)
Average high °C (°F)2.85(37.13)5.15(41.27)7.43(45.37)12.47(54.45)19.51(67.12)25.14(77.25)29.87(85.77)28.1(82.58)24.3(75.74)17.71(63.88)10.37(50.67)5.31(41.56)15.68(60.22)
Daily mean °C (°F)1.02(33.84)3.15(37.67)5.32(41.58)10.3(50.54)16.95(62.51)22.77(72.99)27.43(81.37)25.98(78.76)21.89(71.4)15.66(60.19)8.38(47.08)3.71(38.68)13.55(56.39)
Average low °C (°F)-2.34(27.79)-0.13(31.77)2.03(35.65)6.7(44.06)12.7(54.86)18.54(65.37)23.51(74.32)22.54(72.57)18.59(65.46)12.41(54.34)5.18(41.32)0.7(33.26)10.04(50.07)
Record low °C (°F)-18.0(-0.4)-18.0(-0.4)-9.0(15.8)-1.0(30.2)3.0(37.4)12.0(53.6)17.0(62.6)15.0(59.0)10.0(50.0)0.0(0)-7.0(19.4)-9.0(15.8)-18.0(-0.4)
Average precipitation mm (inches)37.49(1.48)45.64(1.8)42.81(1.69)45.98(1.81)40.92(1.61)39.46(1.55)59.73(2.35)58.51(2.3)40.02(1.58)46.65(1.84)46.79(1.84)65.68(2.59)47.47(1.87)
Average precipitation days (≥ 1.0 mm)2.183.553.644.274.734.275.274.822.823.362.913.093.74
Average relative humidity (%)64.967.4564.8164.166.8664.2664.1165.8866.7467.6165.0370.8566.05
Mean monthly sunshine hours7.378.449.189.7112.4213.2813.3211.439.838.556.786.39.72

Climate Graph

The chart below shows the mean monthly temperature and precipitation of Old Greenwich in recent years.

Old Greenwich

Old Greenwich Temperature by Month

July
27.43°C | 81.37°F
August
25.98°C | 78.76°F
June
22.77°C | 72.99°F
September
21.89°C | 71.4°F
May
16.95°C | 62.51°F
October
15.66°C | 60.19°F
April
10.3°C | 50.54°F
November
8.38°C | 47.08°F
March
5.32°C | 41.58°F
December
3.71°C | 38.68°F
February
3.15°C | 37.67°F
January
1.02°C | 33.84°F

Historical Data

Summary
  • 2020
  • 2019
  • 2018
  • January
  • February
  • March
  • April
  • May
  • June
  • July
  • August
  • September
  • October
  • November
  • December
TemperatureMaxAverageMin
Max Temperature35.0°C (95.0°F)29.74°C (85.53°F)23.0°C (73.4°F)
Avg Temperature32.0°C (89.6°F)27.48°C (81.46°F)21.0°C (69.8°F)
Min Temperature27.0°C (80.6°F)23.68°C (74.62°F)19.0°C (66.2°F)
Dew PointMaxAverageMin
Dew Point22.0°C (71.6°F)19.39°C (66.9°F)13.0°C (55.4°F)
PrecipitationMaxAverageMinSum
Precipitation49.4mm | 1.94in9.17mm | 0.36in0.0mm | 0in284.3mm | 11.19in
Snowdepth0.0mm | 0in0.0mm | 0in0.0mm | 0in0.0mm | 0in
WindMaxAverageMin
Wind16.0kmh | 9.94mph10.74kmh | 6.67mph5.0kmh | 3.11mph
Gust Wind24.0kmh | 14.91mph15.29kmh | 9.5mph7.0kmh | 4.35mph
Sea Level PressureMaxAverageMin
Sea Level Pressure49.4mb9.17mb0.0mb
Old Greenwich

Daily Observations

TimeTemperatureDew PointHumidityWind SpeedPressurePrecipitation
August° C | ° F° C | ° F%Kph | MphHg | MbTotal (mm/in)
2018-08-0128 | 82.422 | 71.67516 | 9.9430.06 | 10189.9 | 0.39
2018-08-0229 | 84.221 | 69.86813 | 8.0830.09 | 10199.6 | 0.38
2018-08-0328 | 82.422 | 71.67113 | 8.0830.12 | 102022.7 | 0.89
2018-08-0428 | 82.421 | 69.8688 | 4.9730.09 | 101924.3 | 0.96
2018-08-0531 | 87.821 | 69.8616 | 3.7330.12 | 10200.0 | 0.0
2018-08-0632 | 89.621 | 69.8587 | 4.3530.06 | 10180.0 | 0.0
2018-08-0730 | 86.021 | 69.86310 | 6.2129.97 | 101511.0 | 0.43
2018-08-0831 | 87.822 | 71.6647 | 4.3529.85 | 101120.9 | 0.82
2018-08-0929 | 84.220 | 68.06212 | 7.4629.8 | 100913.5 | 0.53
2018-08-1029 | 84.219 | 66.2606 | 3.7329.88 | 10126.2 | 0.24
2018-08-1125 | 77.020 | 68.0755 | 3.1129.94 | 101449.4 | 1.94
2018-08-1227 | 80.620 | 68.07411 | 6.8430.0 | 101612.6 | 0.5
2018-08-1324 | 75.221 | 69.88512 | 7.4629.97 | 101520.8 | 0.82
2018-08-1427 | 80.619 | 66.2699 | 5.5929.85 | 101112.0 | 0.47
2018-08-1528 | 82.419 | 66.26412 | 7.4629.88 | 10120.6 | 0.02
2018-08-1630 | 86.020 | 68.06010 | 6.2130.03 | 10170.8 | 0.03
2018-08-1728 | 82.422 | 71.66813 | 8.0830.03 | 101722.2 | 0.87
2018-08-1827 | 80.620 | 68.07012 | 7.4629.83 | 101022.7 | 0.89
2018-08-1921 | 69.816 | 60.87315 | 9.3229.97 | 10151.6 | 0.06
2018-08-2023 | 73.417 | 62.67110 | 6.2130.12 | 10200.8 | 0.03
2018-08-2124 | 75.217 | 62.67011 | 6.8430.06 | 10180.0 | 0.0
2018-08-2226 | 78.819 | 66.27116 | 9.9429.74 | 100717.4 | 0.69
2018-08-2323 | 73.413 | 55.45514 | 8.729.94 | 10140.1 | 0.0
2018-08-2427 | 80.615 | 59.0527 | 4.3530.18 | 10220.0 | 0.0
2018-08-2525 | 77.014 | 57.2548 | 4.9730.27 | 10250.0 | 0.0
2018-08-2626 | 78.818 | 64.46311 | 6.8430.12 | 10200.0 | 0.0
2018-08-2730 | 86.021 | 69.8677 | 4.3530.06 | 10180.5 | 0.02
2018-08-2831 | 87.822 | 71.66311 | 6.8430.03 | 10173.8 | 0.15
2018-08-2932 | 89.621 | 69.85813 | 8.0829.97 | 10150.0 | 0.0
2018-08-3029 | 84.220 | 68.06113 | 8.0830.0 | 10160.0 | 0.0
2018-08-3124 | 75.217 | 62.66815 | 9.3230.24 | 10240.9 | 0.04

Old Greenwich 3 Year Historical Weather Data

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