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 start of April brings a rise in the average high-temperature, moving from an icy 39.7°F (4.3°C) in March to a fresh 53.1°F (11.7°C). Throughout April, the average low-temperature in Sinai records at a cold 36.7°F (2.6°C).Humidity
In Sinai, South Dakota, the average relative humidity in April is 70%.Rainfall
In Sinai, during April, the rain falls for 13.5 days and regularly aggregates up to 2.24" (57mm) of precipitation. Throughout the year, in Sinai, there are 125.5 rainfall days, and 21.65" (550mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Sinai, in April, during 4.7 snowfall days, 2.13" (54mm) of snow is typically accumulated. In Sinai, during the entire year, snow falls for 61.5 days and aggregates up to 21.38" (543mm) of snow.Daylight
In April, the average length of the day in Sinai is 13h and 29min.On the first day of April, sunrise is at 7:07 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 6:19 am and sunset at 8:31 pm CDT.
Sunshine
In Sinai, the average sunshine in April is 7.8h.UV index
The average daily maximum UV index in April is 3. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: The daily high UV index of 3 during April translates into the following recommendations:
Ensure safety - Sun damage prevention is strongly urged. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average April temperature in Sinai?
What is the average humidity in April in Sinai?
How much does it rain in Sinai in April?
How much does it snow in Sinai in April?
How many hours of daylight does Sinai have in April?
When are sunrise and sunset in April in Sinai?
How long on average sun shines in April in Sinai?
What is the UV index intensity in April in Sinai?
Average temperature in April
Sinai, SD
- Average high temperature in April: 53.1°F
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (20.7°F).
- Average low temperature in April: 36.7°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 (7°F).
Average pressure in April
Sinai, SD
- Average pressure in April: 29.94"Hg
The months with the highest atmospheric pressure are January and February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in April
Sinai, SD
- Average wind speed in April: 11.5mph
The windiest month (with the highest average wind speed) is April (11.5mph).
The calmest month (with the lowest average wind speed) is July (8.4mph).
Average humidity in April
Sinai, SD
- Average humidity in April: 70%
The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is October (68%).
Average rainfall in April
Sinai, SD
- Average rainfall in April: 2.24"
The wettest month (with the highest rainfall) is June (3.46").
The driest month (with the least rainfall) is November (0.67").
Average rainfall days in April
Sinai, SD
- Average rainfall days in April: 13.5 days
The month with the highest number of rainy days is June (19.8 days).
The month with the least rainy days is January (3.2 days).
Average snowfall in April
Sinai, SD
- Average snowfall in April: 2.13"
The month with the highest snowfall is February (4.69").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
Sinai, SD
- Average snowfall days in April: 4.7 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, August and September (0 days).
Average daylight in April /
Average sunshine in April
Sinai, 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 5min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in April
Sinai, SD
- Average sunshine days in April: 11.9 days
The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is June (8.3 days).
Average UV index in April
Sinai, SD
- Average UV index in April: 3
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in April
Sinai, SD
- Average cloud cover in April: 46
The month with the most cloud cover is January (Cloud cover 59).
The months with the least cloud cover are July and August (Cloud cover 28).
Average visibility in April
Sinai, 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).
Sinai, South Dakota, USA
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