April weather forecastGreenwich, CT
April
Weather in April
April signifies the awaited arrival of spring in Greenwich. The landscape transitions from white to color, blessed with the blossoms of the season. The spectrum of temperature swings between 43.5°F (6.4°C) and 55.4°F (13°C), making it a comfortable month for outdoor exploration. With an average of 15.5 days of rainfall, April becomes the harbinger of rejuvenating showers. Extended daylight up to 13.3 hours enhances the daytime activities, further animating the city life.Temperature
April's arrival brings a temperature shift, moving from a frosty 45°F (7.2°C) in March to a moderate 55.4°F (13°C). The month of April records an average low-temperature of 43.5°F (6.4°C) in Greenwich.Humidity
In April, the average relative humidity is 72%.Rainfall
In Greenwich, in April, it is raining for 15.5 days, with typically 3.11" (79mm) of accumulated precipitation. In Greenwich, during the entire year, the rain falls for 165.6 days and collects up to 37.64" (956mm) of precipitation.Snowfall
January through April, November and December are months with snowfall in Greenwich, Connecticut. April is the last month it regularly snows in Greenwich, Connecticut. During 0.5 snowfall days, in April, Greenwich aggregates 0.08" (2mm) of snow. Throughout the year, in Greenwich, there are 25.5 snowfall days, and 8.78" (223mm) of snow is accumulated.Ocean temperature
In April, the average ocean temperature is 44.2°F (6.8°C).Note: Swimming in 44.2°F (6.8°C) is deemed hazardous. Exposure to temperatures below 50°F (10°C) leads to immediate severe cold shock and hyperventilation.
Daylight
In Greenwich, Connecticut, the average length of the day in April is 13h and 20min.On the first day of the month, sunrise is at 6:36 am and sunset at 7:19 pm. On the last day of April, in Greenwich, sunrise is at 5:52 am and sunset at 7:50 pm EDT.
Sunshine
In Greenwich, the average sunshine in April is 8.2h.UV index
In Greenwich, Connecticut, the average daily maximum UV index in April is 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: In April, the UV index of 3 transforms into the following advice:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Greenwich, CT
- Average high temperature in April: 55.4°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (35.8°F).
- Average low temperature in April: 43.5°F
The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).
Average pressure in April
Greenwich, CT
- Average pressure in April: 29.98"Hg
The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in April
Greenwich, CT
- Average wind speed in April: 9.1mph
The windiest month (with the highest average wind speed) is January (9.9mph).
The calmest month (with the lowest average wind speed) is July (6.5mph).
Average humidity in April
Greenwich, CT
- Average humidity in April: 72%
The months with the highest relative humidity are February, May and December (75%).
The month with the lowest relative humidity is August (71%).
Average rainfall in April
Greenwich, CT
- Average rainfall in April: 3.11"
The wettest month (with the highest rainfall) is July (4.13").
The driest months (with the least rainfall) are January and February (2.4").
Average rainfall days in April
Greenwich, CT
- Average rainfall days in April: 15.5 days
The month with the highest number of rainy days is July (18.1 days).
The month with the least rainy days is January (7.9 days).
Average snowfall in April
Greenwich, CT
- Average snowfall in April: 0.08"
The month with the highest snowfall is February (2.52").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in April
Greenwich, CT
- Average snowfall days in April: 0.5 days
The month with the highest number of snowfall days is January (7.2 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average sea temperature in April
Greenwich, CT
- Average sea temperature in April: 44.3°F
The best month for swimming (with the highest average sea temperature) is August (73.1°F).
The coldest month (with the lowest average sea temperature) is February (39.5°F).
Average daylight in April /
Average sunshine in April
Greenwich, CT
- Average daylight in April: 13h and 18min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in April: 8h and 12min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in April
Greenwich, CT
- Average sunshine days in April: 12.7 days
The month with the most sunshine days is November (17.8 days).
The month with the least sunshine days is June (10.7 days).
Average UV index in April
Greenwich, CT
- Average UV index in April: 3
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in April
Greenwich, CT
- Average cloud cover in April: 45
The month with the most cloud cover is December (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in April
Greenwich, CT
- Average visibility in April: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
