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
Port Jefferson's transition into April is marked by a temperature shift, moving from a chilly 47.5°F (8.6°C) in March to a mild 59.5°F (15.3°C). April nights in Port Jefferson observe an average temperature dip to an icy 42.6°F (5.9°C).Humidity
The average relative humidity in April in Port Jefferson, Ohio, is 77%.Rainfall
In Port Jefferson, in April, it is raining for 11.4 days, with typically 0.75" (19mm) of accumulated precipitation. In Port Jefferson, during the entire year, the rain falls for 111.7 days and collects up to 8.58" (218mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Port Jefferson. In Port Jefferson, Ohio, during April, snow falls for 1 days and regularly aggregates up to 0.12" (3mm) of snow. Throughout the year, there are 27.1 snowfall days, and 2.8" (71mm) of snow is accumulated.Daylight
The average length of the day in April is 13h and 19min.On the first day of the month, sunrise is at 7:18 am and sunset at 8:01 pm. On the last day of April, sunrise is at 6:35 am and sunset at 8:31 pm EDT.
Sunshine
In Port Jefferson, the average sunshine in April is 7.5h.UV index
The average daily maximum UV index in April in Port Jefferson is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: During April, 4 as the daily maximum UV index converts into the following advice:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Frequently asked questions
What are the temperatures in Port Jefferson in April?
What is the average humidity in April in Port Jefferson?
How much does it rain in Port Jefferson in April?
How much does it snow in Port Jefferson in April?
How many hours of daylight does Port Jefferson have in April?
When are sunrise and sunset in April in Port Jefferson?
How long on average sun shines in April in Port Jefferson?
What is the UV index reading in April in Port Jefferson?
Average temperature in April
Port Jefferson, OH
- Average high temperature in April: 59.5°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (32°F).
- Average low temperature in April: 42.6°F
The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (20.1°F).
Average pressure in April
Port Jefferson, OH
- Average pressure in April: 29.96"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in April
Port Jefferson, OH
- Average wind speed in April: 10mph
The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).
Average humidity in April
Port Jefferson, OH
- Average humidity in April: 77%
The months with the highest relative humidity are January, February and December (83%).
The month with the lowest relative humidity is October (75%).
Average rainfall in April
Port Jefferson, OH
- Average rainfall in April: 0.75"
The wettest months (with the highest rainfall) are May and June (1.06").
The driest month (with the least rainfall) is November (0.47").
Average rainfall days in April
Port Jefferson, OH
- Average rainfall days in April: 11.4 days
The month with the highest number of rainy days is May (13.2 days).
The month with the least rainy days is February (5 days).
Average snowfall in April
Port Jefferson, OH
- Average snowfall in April: 0.12"
The month with the highest snowfall is February (0.79").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
Port Jefferson, OH
- Average snowfall days in April: 1 days
The month with the highest number of snowfall days is January (7.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Port Jefferson, OH
- Average daylight in April: 13h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in April: 7h and 3min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in April
Port Jefferson, OH
- Average sunshine days in April: 16.2 days
The month with the most sunshine days is November (21.8 days).
The month with the least sunshine days is July (13.6 days).
Average UV index in April
Port Jefferson, OH
- Average UV index in April: 4
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, October, November and December (UV index 2).
Average cloud cover in April
Port Jefferson, OH
- Average cloud cover in April: 46
The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in April
Port Jefferson, OH
- Average visibility in April: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, October, November and December (6mi).
The months with the lowest visibility are August and September (5mi).
Port Jefferson, Ohio, USA
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