Contents
- Weather in April
- Frequently asked questions
- Average temperature in April
- Average pressure in April
- Average wind speed in April
- Average humidity in April
- Average rainfall in April
- Average rainfall days in April
- Average snowfall in April
- Average snowfall days in April
- Average sea temperature in April
- Average daylight in April
- Average sunshine in April
- Average sunshine days in April
- Average UV index in April
- Average cloud cover in April
- Average visibility in April
Weather in April
Temperature
The onset of April in Norwalk brings a rise in the average high-temperature, elevating from a frosty 44.4°F (6.9°C) in March to a fresh 55.2°F (12.9°C). The low-temperature in Norwalk, Connecticut, averages to a chilly 43°F (6.1°C) during the nights of April.Humidity
April and November, with an average relative humidity of 72%, are the least humid months in Norwalk.Rainfall
In Norwalk, Connecticut, in April, it is raining for 15.9 days, with typically 3.15" (80mm) of accumulated precipitation. In Norwalk, during the entire year, the rain falls for 166.3 days and collects up to 37.87" (962mm) of precipitation.Snowfall
January through April, November and December are months with snowfall in Norwalk. April is the last month it regularly snows. During 0.7 snowfall days, in April, Norwalk aggregates 0.08" (2mm) of snow. In Norwalk, during the entire year, snow falls for 24.6 days and aggregates up to 9.61" (244mm) of snow.Ocean temperature
In Norwalk, Connecticut, in April, the average water temperature is 44.2°F (6.8°C).Note: Beware when you're in 44.2°F (6.8°C) waters; 55.4°F (13°C) is chilling and anything below 50°F (10°C) could cause breathing hindrance and a sudden cold shock, given your physical condition.
Daylight
In April, the average length of the day in Norwalk is 13h and 20min.On the first day of the month, sunrise is at 6:35 am and sunset at 7:19 pm. On the last day of April, in Norwalk, sunrise is at 5:51 am and sunset at 7:49 pm EDT.
Sunshine
In April, the average sunshine in Norwalk is 8.4h.UV index
The average daily maximum UV index in April is 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for average individuals.Note: The maximum daily UV index of 3 in April interprets into the following recommendations:
Exercise prevention - Precautions against solar damage are endorsed. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average April temperature in Norwalk?
What are the least humid months in Norwalk?
What is the average humidity in April in Norwalk?
How many days does it rain in April in Norwalk?
What is the last month it snows in Norwalk?
What is the water temperature in April in Norwalk?
How many hours of daylight does Norwalk have in April?
When are sunrise and sunset in April in Norwalk?
How many hours of sunshine does Norwalk have in April?
What is the UV index reading in April in Norwalk?
Average temperature in April
Norwalk, CT
- Average high temperature in April: 55.2°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (35.8°F).
- Average low temperature in April: 43°F
The month with the highest average low temperature is July (68.2°F).
The coldest month (with the lowest average low temperature) is January (26.4°F).
Average pressure in April
Norwalk, CT
- Average pressure in April: 29.98"Hg
The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in April
Norwalk, CT
- Average wind speed in April: 9.1mph
The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest month (with the lowest average wind speed) is July (6.5mph).
Average humidity in April
Norwalk, CT
- Average humidity in April: 72%
The months with the highest relative humidity are February, May and June (76%).
The months with the lowest relative humidity are April and November (72%).
Average rainfall in April
Norwalk, CT
- Average rainfall in April: 3.15"
The wettest month (with the highest rainfall) is July (4.13").
The driest months (with the least rainfall) are January and February (2.36").
Average rainfall days in April
Norwalk, CT
- Average rainfall days in April: 15.9 days
The month with the highest number of rainy days is July (18.1 days).
The month with the least rainy days is January (8.3 days).
Average snowfall in April
Norwalk, CT
- Average snowfall in April: 0.08"
The month with the highest snowfall is February (2.83").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in April
Norwalk, CT
- Average snowfall days in April: 0.7 days
The month with the highest number of snowfall days is February (7.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in April
Norwalk, CT
- Average sea temperature in April: 44.2°F
The best month for swimming (with the highest average sea temperature) is August (73°F).
The coldest month (with the lowest average sea temperature) is February (39°F).
Average daylight in April /
Average sunshine in April
Norwalk, CT
- Average daylight in April: 13h and 2min
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 2min
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
Norwalk, CT
- Average sunshine days in April: 12.6 days
The month with the most sunshine days is January (17.8 days).
The month with the least sunshine days is June (10 days).
Average UV index in April
Norwalk, 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
Norwalk, CT
- Average cloud cover in April: 44
The months with the most cloud cover are February, March and December (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in April
Norwalk, 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).
Norwalk, Connecticut, USA
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