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
The onset of April brings a rise in the average high-temperature, elevating from a chilly 43.7°F (6.5°C) in March to a fresh 54.1°F (12.3°C). In April, the average low-temperature is an icy 41.7°F (5.4°C).Humidity
April is the least humid month in Old Lyme, with an average relative humidity of 73%.Rainfall
In Old Lyme, Connecticut, in April, it is raining for 10.1 days, with typically 0.87" (22mm) of accumulated precipitation. In Old Lyme, during the entire year, the rain falls for 110.7 days and collects up to 8.58" (218mm) of precipitation.Snowfall
April through October are months without snowfall in Old Lyme, Connecticut.Daylight
The average length of the day in April is 13h and 21min.On the first day of April, sunrise is at 6:31 am and sunset at 7:14 pm. On the last day of the month, sunrise is at 5:46 am and sunset at 7:46 pm EDT.
Sunshine
In Old Lyme, the average sunshine in April is 8.5h.UV index
The average daily maximum UV index in April is 3. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the average person.Note: In April, the maximum UV index of 3 translates into these guidelines:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Frequently asked questions
What are the temperatures in Old Lyme in April?
What is the least humid month in Old Lyme?
What is the average humidity in April in Old Lyme?
How many days does it rain in April in Old Lyme?
When it does not snow in Old Lyme?
Does it snow in Old Lyme in April?
What is the average length of the day in April in Old Lyme?
What time are sunrise and sunset in April in Old Lyme?
How long on average sun shines in April in Old Lyme?
What is the UV index reading in April in Old Lyme?
Average temperature in April
Old Lyme, CT
- Average high temperature in April: 54.1°F
The warmest month (with the highest average high temperature) is July (79.5°F).
The month with the lowest average high temperature is January (35.4°F).
- Average low temperature in April: 41.7°F
The month with the highest average low temperature is July (66.4°F).
The coldest month (with the lowest average low temperature) is January (25.7°F).
Average pressure in April
Old Lyme, 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 Lyme, CT
- Average wind speed in April: 9.9mph
The windiest month (with the highest average wind speed) is January (11.1mph).
The calmest month (with the lowest average wind speed) is July (7.2mph).
Average humidity in April
Old Lyme, CT
- Average humidity in April: 73%
The months with the highest relative humidity are June and July (79%).
The month with the lowest relative humidity is April (73%).
Average rainfall in April
Old Lyme, CT
- Average rainfall in April: 0.87"
The wettest month (with the highest rainfall) is December (0.94").
The driest month (with the least rainfall) is September (0.35").
Average rainfall days in April
Old Lyme, CT
- Average rainfall days in April: 10.1 days
The month with the highest number of rainy days is July (11.5 days).
The months with the least rainy days are February and November (6.6 days).
Average snowfall in April
Old Lyme, CT
- Average snowfall in April: 0"
The month with the highest snowfall is March (0.63").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in April
Old Lyme, CT
- Average snowfall days in April: 0.3 days
The month with the highest number of snowfall days is January (5.4 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
Old Lyme, 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 3min
The months with the most sunshine are July and 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 Lyme, CT
- Average sunshine days in April: 18.5 days
The month with the most sunshine days is November (21.1 days).
The month with the least sunshine days is July (15.8 days).
Average UV index in April
Old Lyme, 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 Lyme, 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 28).
Average visibility in April
Old Lyme, 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 Lyme, Connecticut, USA
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