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
April's arrival sees a rise in the average high-temperature, jumping from March's chilly 43.7°F (6.5°C) to a cool 54.3°F (12.4°C). April nights observe an average temperature dip to an icy 41.7°F (5.4°C).Humidity
With an average relative humidity of 73%, April is the least humid month.Rainfall
In April, the rain falls for 15.2 days. Throughout April, 3.23" (82mm) of precipitation is accumulated. Throughout the year, there are 166.2 rainfall days, and 34.8" (884mm) of precipitation is accumulated.Snowfall
January through May, November and December are months with snowfall. In Old Saybrook, in April, during 0.7 snowfall days, 0.08" (2mm) of snow is typically accumulated. In Old Saybrook, during the entire year, snow falls for 24.2 days and aggregates up to 9.53" (242mm) of snow.Ocean temperature
In Old Saybrook, Connecticut, the average seawater temperature in April is 44.4°F (6.9°C).Note: Dipping into 44.4°F (6.9°C) below 50°F (10°C) is possible with the right protection; absent that, anticipate cold shock and hampered breathing. Swimming momentarily at 55.4°F (13°C) can be jarring.
Daylight
In Old Saybrook, the average length of the day in April is 13h and 21min.On the first day of the month, sunrise is at 6:31 am and sunset at 7:15 pm. On the last day of April, in Old Saybrook, sunrise is at 5:47 am and sunset at 7:46 pm EDT.
Sunshine
The average sunshine in April is 8.4h.UV index
The average daily maximum UV index in April is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A daily maximum UV index of 3 in April translates into the following instructions:
Exercise caution. Those with pale skin may experience burns in less than half an hour. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. 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
What is the temperature in April?
What is the least humid month?
What is the average humidity in April?
How many days does it rain in April?
How much does it snow in April?
What is the ocean temperature in April?
What is the average length of the day in April?
When is the sunrise / sunset in April?
How many hours of sunshine does Old Saybrook have in April?
What is the UV index intensity in April?
Average temperature in April
Old Saybrook, CT
- Average high temperature in April: 54.3°F
The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (35.2°F).
- Average low temperature in April: 41.7°F
The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (25.5°F).
Average pressure in April
Old Saybrook, CT
- Average pressure in April: 29.98"Hg
The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in April
Old Saybrook, CT
- Average wind speed in April: 9.8mph
The windiest month (with the highest average wind speed) is January (10.9mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).
Average humidity in April
Old Saybrook, CT
- Average humidity in April: 73%
The months with the highest relative humidity are May, June and July (78%).
The month with the lowest relative humidity is April (73%).
Average rainfall in April
Old Saybrook, CT
- Average rainfall in April: 3.23"
The wettest month (with the highest rainfall) is December (3.66").
The driest month (with the least rainfall) is September (1.93").
Average rainfall days in April
Old Saybrook, CT
- Average rainfall days in April: 15.2 days
The month with the highest number of rainy days is July (17 days).
The month with the least rainy days is January (9 days).
Average snowfall in April
Old Saybrook, CT
- Average snowfall in April: 0.08"
The month with the highest snowfall is March (2.76").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in April
Old Saybrook, CT
- Average snowfall days in April: 0.7 days
The month with the highest number of snowfall days is February (7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in April
Old Saybrook, CT
- Average sea temperature in April: 44.4°F
The best month for swimming (with the highest average sea temperature) is August (72.1°F).
The coldest month (with the lowest average sea temperature) is February (38.8°F).
Average daylight in April /
Average sunshine in April
Old Saybrook, 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 August (Average sunshine: 10h and 36min).
The months with the least sunshine are February and December (Average sunshine: 4h and 48min).
Average sunshine days in April
Old Saybrook, CT
- Average sunshine days in April: 12.7 days
The month with the most sunshine days is November (17.1 days).
The month with the least sunshine days is July (11.7 days).
Average UV index in April
Old Saybrook, 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
Old Saybrook, 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 29).
Average visibility in April
Old Saybrook, 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).
Old Saybrook, Connecticut, USA
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