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
In April, the meteorological conditions change with the average high-temperature moving from a frosty 46.8°F (8.2°C) in March to a moderate 56.5°F (13.6°C). In April, the average low-temperature in Interior records at a wintry 38.7°F (3.7°C) during the nights.Humidity
In Interior, the average relative humidity in April is 62%.Rainfall
In Interior, in April, it is raining for 11.8 days, with typically 1.57" (40mm) of accumulated precipitation. Throughout the year, there are 95.3 rainfall days, and 13.74" (349mm) of precipitation is accumulated.Snowfall
Months with snowfall in Interior are January through May, October through December. In April, in Interior, it is snowing for 3.3 days. Throughout April, 2.13" (54mm) of snow is accumulated. Throughout the year, there are 38.8 snowfall days, and 16.1" (409mm) of snow is accumulated.Daylight
In April, the average length of the day is 13h and 28min.On the first day of April, sunrise is at 6:27 am and sunset at 7:15 pm. On the last day of the month, sunrise is at 5:40 am and sunset at 7:49 pm MDT.
Sunshine
The average sunshine in April is 9h.UV index
The average daily maximum UV index in April in Interior is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: In April, the UV index of 3 transforms into the following advice:
Take necessary precautions - Suggestions to elude sunburn are provided. To protect against the Sun's most potent rays, avoid direct exposure around midday. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average April temperature in Interior?
What is the average humidity in April in Interior?
How much does it rain in Interior in April?
How much does it snow in Interior in April?
What is the average length of the day in April in Interior?
When are sunrise and sunset in April in Interior?
How many hours of sunshine does Interior have in April?
How high is the UV index in April in Interior?
Average temperature in April
Interior, SD
- Average high temperature in April: 56.5°F
The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (29.8°F).
- Average low temperature in April: 38.7°F
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (16.7°F).
Average pressure in April
Interior, SD
- Average pressure in April: 29.93"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in April
Interior, SD
- Average wind speed in April: 12.1mph
The windiest month (with the highest average wind speed) is April (12.1mph).
The calmest month (with the lowest average wind speed) is February (10.1mph).
Average humidity in April
Interior, SD
- Average humidity in April: 62%
The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is September (47%).
Average rainfall in April
Interior, SD
- Average rainfall in April: 1.57"
The wettest month (with the highest rainfall) is May (2.09").
The driest month (with the least rainfall) is January (0.39").
Average rainfall days in April
Interior, SD
- Average rainfall days in April: 11.8 days
The month with the highest number of rainy days is May (13.5 days).
The month with the least rainy days is February (2.6 days).
Average snowfall in April
Interior, SD
- Average snowfall in April: 2.13"
The month with the highest snowfall is February (3.15").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
Interior, SD
- Average snowfall days in April: 3.3 days
The month with the highest number of snowfall days is February (8.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Interior, SD
- Average daylight in April: 13h and 3min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in April: 9h and 0min
The month with the most sunshine is August (Average sunshine: 11h and 42min).
The months with the least sunshine are January and February (Average sunshine: 5h and 12min).
Average sunshine days in April
Interior, SD
- Average sunshine days in April: 14.1 days
The month with the most sunshine days is December (21.1 days).
The months with the least sunshine days are April and June (14.1 days).
Average UV index in April
Interior, SD
- Average UV index in April: 3
The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in April
Interior, SD
- Average cloud cover in April: 41
The month with the most cloud cover is January (Cloud cover 46).
The months with the least cloud cover are July and August (Cloud cover 18).
Average visibility in April
Interior, SD
- Average visibility in April: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Interior, South Dakota, USA
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