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
A rise in the average high-temperature is observed during April, moving from a frosty 46.8°F (8.2°C) in March to a moderate 58.6°F (14.8°C). During the nights in April, Mount Vernon experiences a consistent average temperature of 41°F (5°C).Humidity
The months with the lowest humidity are March, April and November, with an average relative humidity of 78%.Rainfall
In Mount Vernon, in April, it is raining for 15.2 days, with typically 1.85" (47mm) of accumulated precipitation. Throughout the year, there are 148.8 rainfall days, and 18.9" (480mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, November and December. April is the last month it regularly snows. During 0.9 snowfall days, in April, Mount Vernon aggregates 0.12" (3mm) of snow. Throughout the year, there are 32.5 snowfall days, and 5.63" (143mm) of snow is accumulated.Daylight
In April, the average length of the day is 13h and 19min.On the first day of April, sunrise is at 7:12 am and sunset at 7:54 pm. On the last day of the month, sunrise is at 6:29 am and sunset at 8:24 pm EDT.
Sunshine
In April, the average sunshine is 7h.UV index
The average daily maximum UV index in April is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: The daily high UV index of 4 in April translates into this advice:
Prioritize safety - Suggestions to prevent sun damage are offered. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in April?
What are the least humid months?
What is the average humidity in April?
How many days does it rain in April in Mount Vernon?
What is the last month it snows?
How many hours of daylight does Mount Vernon have in April?
What time are sunrise and sunset in April?
How long on average sun shines in April?
What is the UV index intensity in April?
Average temperature in April
Mount Vernon, OH
- Average high temperature in April: 58.6°F
The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (31.5°F).
- Average low temperature in April: 41°F
The month with the highest average low temperature is July (62.1°F).
The coldest month (with the lowest average low temperature) is January (19.2°F).
Average pressure in April
Mount Vernon, OH
- Average pressure in April: 29.97"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in April
Mount Vernon, OH
- Average wind speed in April: 9.5mph
The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).
Average humidity in April
Mount Vernon, OH
- Average humidity in April: 78%
The month with the highest relative humidity is January (86%).
The months with the lowest relative humidity are March, April and November (78%).
Average rainfall in April
Mount Vernon, OH
- Average rainfall in April: 1.85"
The wettest month (with the highest rainfall) is May (2.36").
The driest month (with the least rainfall) is February (1.18").
Average rainfall days in April
Mount Vernon, OH
- Average rainfall days in April: 15.2 days
The month with the highest number of rainy days is May (18.6 days).
The month with the least rainy days is February (6.9 days).
Average snowfall in April
Mount Vernon, OH
- Average snowfall in April: 0.12"
The month with the highest snowfall is February (1.65").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in April
Mount Vernon, OH
- Average snowfall days in April: 0.9 days
The month with the highest number of snowfall days is January (10 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Mount Vernon, 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 18min).
- Average sunshine in April: 7h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).
Average sunshine days in April
Mount Vernon, OH
- Average sunshine days in April: 12.4 days
The month with the most sunshine days is November (19 days).
The month with the least sunshine days is May (10.5 days).
Average UV index in April
Mount Vernon, OH
- Average UV index in April: 4
The months with the highest UV index are June and July (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
Mount Vernon, OH
- Average cloud cover in April: 49
The month with the most cloud cover is January (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in April
Mount Vernon, OH
- Average visibility in April: 6mi
The months with the highest visibility are February, March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are January, July, August and September (5mi).
Mount Vernon, Ohio, USA
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