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
April sees a temperature increase, moving from a wintry 38.1°F (3.4°C) in March to a cool 51.6°F (10.9°C). Vienna, during the month of April, experiences an average low-temperature of 35.2°F (1.8°C).Humidity
In April, the average relative humidity in Vienna is 70%.Rainfall
In Vienna, in April, it is raining for 11.6 days, with typically 1.46" (37mm) of accumulated precipitation. In Vienna, during the entire year, the rain falls for 112.3 days and collects up to 18.78" (477mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Vienna, during April, snow falls for 4.8 days and regularly aggregates up to 1.46" (37mm) of snow. In Vienna, during the entire year, snow falls for 64.3 days and aggregates up to 17.56" (446mm) of snow.Daylight
The average length of the day in April is 13h and 31min.On the first day of the month, sunrise is at 7:09 am and sunset at 7:58 pm. On the last day of April, in Vienna, sunrise is at 6:20 am and sunset at 8:34 pm CDT.
Sunshine
The average sunshine in April in Vienna is 7.5h.UV index
In April, the average daily maximum UV index in Vienna is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In April, a regular UV index of 3 translates into these guidelines:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are April temperatures in Vienna?
What is the average humidity in April in Vienna?
How many days does it rain in April in Vienna?
How many days does it snow in April in Vienna?
What is the average length of the day in April in Vienna?
What time are sunrise and sunset in April in Vienna?
How long on average sun shines in April in Vienna?
What is the UV index reading in April in Vienna?
Average temperature in April
Vienna, SD
- Average high temperature in April: 51.6°F
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (19.4°F).
- Average low temperature in April: 35.2°F
The month with the highest average low temperature is July (60.8°F).
The coldest month (with the lowest average low temperature) is January (5.5°F).
Average pressure in April
Vienna, SD
- Average pressure in April: 29.95"Hg
The months with the highest atmospheric pressure are January and February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in April
Vienna, SD
- Average wind speed in April: 11.6mph
The windiest month (with the highest average wind speed) is April (11.6mph).
The calmest month (with the lowest average wind speed) is July (8.5mph).
Average humidity in April
Vienna, SD
- Average humidity in April: 70%
The month with the highest relative humidity is January (90%).
The months with the lowest relative humidity are September and October (68%).
Average rainfall in April
Vienna, SD
- Average rainfall in April: 1.46"
The wettest month (with the highest rainfall) is June (3.19").
The driest months (with the least rainfall) are January and February (0.59").
Average rainfall days in April
Vienna, SD
- Average rainfall days in April: 11.6 days
The month with the highest number of rainy days is June (17.2 days).
The month with the least rainy days is February (2.7 days).
Average snowfall in April
Vienna, SD
- Average snowfall in April: 1.46"
The months with the highest snowfall are January and December (3.74").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
Vienna, SD
- Average snowfall days in April: 4.8 days
The month with the highest number of snowfall days is January (14.4 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in April /
Average sunshine in April
Vienna, SD
- Average daylight in April: 13h and 3min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in April: 7h and 3min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in April
Vienna, SD
- Average sunshine days in April: 12.8 days
The month with the most sunshine days is October (19.1 days).
The month with the least sunshine days is June (10.3 days).
Average UV index in April
Vienna, SD
- Average UV index in April: 3
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in April
Vienna, SD
- Average cloud cover in April: 48
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in April
Vienna, SD
- Average visibility in April: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
Vienna, South Dakota, USA
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