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, Portsmouth's weather sees a temperature rise, transitioning from a fresh 52.5°F (11.4°C) in March to a comfortable 64.9°F (18.3°C). During the month of April, an average temperature of 45.1°F (7.3°C) is noted during the nights.Humidity
The average relative humidity in April is 76%.Rainfall
In Portsmouth, in April, it is raining for 16 days, with typically 3.15" (80mm) of accumulated precipitation. In Portsmouth, during the entire year, the rain falls for 170.4 days and collects up to 31.02" (788mm) of precipitation.Snowfall
January through April, October through December are months with snowfall. April is the last month it regularly snows. During 0.8 snowfall days, in April, Portsmouth aggregates 0.43" (11mm) of snow. In Portsmouth, during the entire year, snow falls for 36.7 days and aggregates up to 11.57" (294mm) of snow.Daylight
In April, the average length of the day is 13h and 14min.On the first day of April, sunrise is at 7:15 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 6:34 am and sunset at 8:23 pm EDT.
Sunshine
The average sunshine in April is 7.9h.UV index
In Portsmouth, the average daily maximum UV index in April is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for average individuals.Note: The maximum daily UV index of 4 in April interprets into the following recommendations:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average April temperature?
What is the average humidity in April?
How many days does it rain in April?
What is the last month it snows?
What is the average length of the day in April in Portsmouth?
When is the sunrise / sunset in April in Portsmouth?
How many hours of sunshine does Portsmouth have in April?
How high is the UV index in April?
Average temperature in April
Portsmouth, OH
- Average high temperature in April: 64.9°F
The warmest month (with the highest average high temperature) is July (86°F).
The month with the lowest average high temperature is January (37.8°F).
- Average low temperature in April: 45.1°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).
Average pressure in April
Portsmouth, OH
- Average pressure in April: 29.98"Hg
The months with the highest atmospheric pressure are January and November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in April
Portsmouth, OH
- Average wind speed in April: 7.3mph
The windiest months (with the highest average wind speed) are January and February (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).
Average humidity in April
Portsmouth, OH
- Average humidity in April: 76%
The months with the highest relative humidity are February and December (81%).
The month with the lowest relative humidity is August (75%).
Average rainfall in April
Portsmouth, OH
- Average rainfall in April: 3.15"
The wettest month (with the highest rainfall) is May (3.19").
The driest month (with the least rainfall) is September (1.85").
Average rainfall days in April
Portsmouth, OH
- Average rainfall days in April: 16 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is November (10.5 days).
Average snowfall in April
Portsmouth, OH
- Average snowfall in April: 0.43"
The month with the highest snowfall is January (3.19").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in April
Portsmouth, OH
- Average snowfall days in April: 0.8 days
The month with the highest number of snowfall days is January (10.6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Portsmouth, OH
- Average daylight in April: 13h and 1min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in April: 7h and 5min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in April
Portsmouth, OH
- Average sunshine days in April: 12.3 days
The month with the most sunshine days is November (17.3 days).
The month with the least sunshine days is February (10 days).
Average UV index in April
Portsmouth, OH
- Average UV index in April: 4
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in April
Portsmouth, OH
- Average cloud cover in April: 43
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in April
Portsmouth, OH
- Average visibility in April: 6mi
The months with the highest visibility are March, April, June, October and November (6mi).
The months with the lowest visibility are January, February, May, July, August, September and December (5mi).
Portsmouth, Ohio, USA
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