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
Grottoes sees an increase in the average high-temperature with the arrival of April, moving from March's fresh 51.4°F (10.8°C) to a comfortable 63.5°F (17.5°C). Throughout the month of April, Grottoes reports a steady low-temperature average of 43°F (6.1°C).Humidity
The average relative humidity in April is 75%.Rainfall
In Grottoes, in April, during 15.2 rainfall days, 3.19" (81mm) of precipitation is typically accumulated. In Grottoes, Virginia, during the entire year, the rain falls for 164.3 days and collects up to 30.08" (764mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Grottoes, in April, during 0.4 snowfall days, 0.55" (14mm) of snow is typically accumulated. Throughout the year, there are 21.7 snowfall days, and 16.69" (424mm) of snow is accumulated.Daylight
In Grottoes, Virginia, the average length of the day in April is 13h and 13min.On the first day of April, sunrise is at 6:58 am and sunset at 7:38 pm. On the last day of the month, sunrise is at 6:18 am and sunset at 8:06 pm EDT.
Sunshine
In April, the average sunshine is 9.2h.UV index
The average daily maximum UV index in April is 4. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.Note: A maximum high UV index of 4 in April translates into the following recommendations:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Grottoes in April?
What is the average humidity in April?
How many days does it rain in April?
How many days does it snow in April?
What is the average length of the day in April?
When are sunrise and sunset in April?
How many hours of sunshine does Grottoes have in April?
What is the UV index reading in April?
Average temperature in April
Grottoes, VA
- Average high temperature in April: 63.5°F
The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is January (39°F).
- Average low temperature in April: 43°F
The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).
Average pressure in April
Grottoes, VA
- Average pressure in April: 29.99"Hg
The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in April
Grottoes, VA
- Average wind speed in April: 6.6mph
The windiest months (with the highest average wind speed) are February and April (6.6mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity in April
Grottoes, VA
- Average humidity in April: 75%
The months with the highest relative humidity are May, September and October (78%).
The months with the lowest relative humidity are January, June and July (74%).
Average rainfall in April
Grottoes, VA
- Average rainfall in April: 3.19"
The wettest month (with the highest rainfall) is May (3.27").
The driest month (with the least rainfall) is January (1.89").
Average rainfall days in April
Grottoes, VA
- Average rainfall days in April: 15.2 days
The month with the highest number of rainy days is May (18.8 days).
The month with the least rainy days is November (8.6 days).
Average snowfall in April
Grottoes, VA
- Average snowfall in April: 0.55"
The month with the highest snowfall is March (4.53").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
Grottoes, VA
- Average snowfall days in April: 0.4 days
The month with the highest number of snowfall days is February (6.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Grottoes, VA
- 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 36min).
- Average sunshine in April: 9h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).
Average sunshine days in April
Grottoes, VA
- Average sunshine days in April: 12.3 days
The month with the most sunshine days is November (19.1 days).
The month with the least sunshine days is May (10.8 days).
Average UV index in April
Grottoes, VA
- Average UV index in April: 4
The months with the highest UV index are May, June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in April
Grottoes, VA
- Average cloud cover in April: 40
The month with the most cloud cover is March (Cloud cover 46).
The months with the least cloud cover are June and July (Cloud cover 31).
Average visibility in April
Grottoes, VA
- Average visibility in April: 6mi
The months with the highest visibility are April, June, July, August and November (6mi).
The months with the lowest visibility are January, February, March, May, September, October and December (5mi).
Grottoes, Virginia, USA
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