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 shift into April is accompanied by a temperature increase, with the average high-temperature rising from a chilly 49.8°F (9.9°C) in March to an enjoyable 62.1°F (16.7°C). Throughout the nights in April, Twin Knolls experiences an average low-temperature of 43.9°F (6.6°C).Humidity
January, March, April, July and November, with an average relative humidity of 75%, are the least humid months.Rainfall
In Twin Knolls, in April, during 15.3 rainfall days, 2.56" (65mm) of precipitation is typically accumulated. Throughout the year, there are 158.9 rainfall days, and 31.38" (797mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall. April is the last month it regularly snows. During 0.3 snowfall days, in April, Twin Knolls aggregates 0.39" (10mm) of snow. Throughout the year, there are 21.2 snowfall days, and 10.55" (268mm) of snow is accumulated.Daylight
In Twin Knolls, the average length of the day in April is 13h and 16min.On the first day of April, sunrise is at 6:50 am and sunset at 7:31 pm. On the last day of the month, sunrise is at 6:08 am and sunset at 8:00 pm EDT.
Sunshine
In April, the average sunshine is 8.4h.UV index
In Twin Knolls, the average daily maximum UV index in April is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: A daily high UV index of 4 in April leads to these guidelines:
Take measures. Individuals with light skin might experience burns in under 30 minutes. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average April temperature?
What are the least humid months?
What is the average humidity in April?
How much does it rain in April?
What is the last month it snows?
What is the average length of the day in April?
When is the sunrise / sunset in April?
How long on average sun shines in April?
How high is the UV index in April?
Average temperature in April
Twin Knolls, MD
- Average high temperature in April: 62.1°F
The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (37.4°F).
- Average low temperature in April: 43.9°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 (24.8°F).
Average pressure in April
Twin Knolls, MD
- Average pressure in April: 29.99"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in April
Twin Knolls, MD
- Average wind speed in April: 8.6mph
The windiest month (with the highest average wind speed) is March (8.9mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).
Average humidity in April
Twin Knolls, MD
- Average humidity in April: 75%
The month with the highest relative humidity is May (80%).
The months with the lowest relative humidity are January, March, April, July and November (75%).
Average rainfall in April
Twin Knolls, MD
- Average rainfall in April: 2.56"
The wettest month (with the highest rainfall) is August (3.86").
The driest month (with the least rainfall) is February (1.89").
Average rainfall days in April
Twin Knolls, MD
- Average rainfall days in April: 15.3 days
The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is January (8.3 days).
Average snowfall in April
Twin Knolls, MD
- Average snowfall in April: 0.39"
The month with the highest snowfall is March (3.46").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in April
Twin Knolls, MD
- Average snowfall days in April: 0.3 days
The month with the highest number of snowfall days is January (6.6 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
Twin Knolls, MD
- Average daylight in April: 13h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in April: 8h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in April
Twin Knolls, MD
- Average sunshine days in April: 13.3 days
The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is May (11.2 days).
Average UV index in April
Twin Knolls, MD
- 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
Twin Knolls, MD
- Average cloud cover in April: 44
The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in April
Twin Knolls, MD
- Average visibility in April: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).
Twin Knolls, Maryland, USA
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