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 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
With the onset of April, Derby's weather sees a temperature rise, transitioning from a chilly 44.2°F (6.8°C) in March to a mild 55.4°F (13°C). Derby, in April, experiences an average temperature of 41.5°F (5.3°C) at night.Humidity
With an average relative humidity of 72%, April is the least humid month.Rainfall
In Derby, Connecticut, during April, the rain falls for 15.3 days and regularly aggregates up to 3.11" (79mm) of precipitation. Throughout the year, there are 169.1 rainfall days, and 36.26" (921mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall. April is the last month it regularly snows. During 0.7 snowfall days, in April, Derby aggregates 0.2" (5mm) of snow. In Derby, during the entire year, snow falls for 27.3 days and aggregates up to 11.42" (290mm) of snow.Daylight
In April, the average length of the day in Derby, Connecticut, is 13h and 21min.On the first day of April in Derby, sunrise is at 6:34 am and sunset at 7:17 pm. On the last day of the month, sunrise is at 5:49 am and sunset at 7:49 pm EDT.
Sunshine
In April, the average sunshine in Derby is 8.4h.UV index
In Derby, the average daily maximum UV index in April is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum daily UV index, 3 in April, converts into the following recommendations:
Undertake precautions - It is suggested to shield oneself from sunburn. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average April temperature in Derby?
What is the least humid month in Derby?
What is the average humidity in April in Derby?
How much does it rain in Derby in April?
What is the last month it snows in Derby?
How many hours of daylight does Derby have in April?
When is the sunrise / sunset in April in Derby?
How long on average sun shines in April in Derby?
What is the UV index intensity in April in Derby?
Average temperature in April
Derby, CT
- Average high temperature in April: 55.4°F
The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (34.7°F).
- Average low temperature in April: 41.5°F
The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (24.6°F).
Average pressure in April
Derby, 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
Derby, CT
- Average wind speed in April: 8.7mph
The windiest month (with the highest average wind speed) is January (9.6mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).
Average humidity in April
Derby, CT
- Average humidity in April: 72%
The month with the highest relative humidity is February (77%).
The month with the lowest relative humidity is April (72%).
Average rainfall in April
Derby, CT
- Average rainfall in April: 3.11"
The wettest month (with the highest rainfall) is December (4.06").
The driest month (with the least rainfall) is September (2.24").
Average rainfall days in April
Derby, CT
- Average rainfall days in April: 15.3 days
The month with the highest number of rainy days is July (18 days).
The month with the least rainy days is January (9.4 days).
Average snowfall in April
Derby, CT
- Average snowfall in April: 0.2"
The month with the highest snowfall is February (3.23").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in April
Derby, CT
- Average snowfall days in April: 0.7 days
The month with the highest number of snowfall days is February (7.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in April /
Average sunshine in April
Derby, 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 months with the most sunshine are July and August (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in April
Derby, CT
- Average sunshine days in April: 12.3 days
The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is June (10.3 days).
Average UV index in April
Derby, 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
Derby, CT
- Average cloud cover in April: 44
The months with the most cloud cover are February and December (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in April
Derby, 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).
Derby, Connecticut, USA
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