April weather forecastMellette, SD
April
Weather in April
April in Mellette, South Dakota, is a fresh spring month, with an average temperature varying between 36.9°F (2.7°C) and 54.1°F (12.3°C).Temperature
As April begins, there is a noticeable increase in the average high-temperature, soaring from a cold 39.7°F (4.3°C) in March to a cool 54.1°F (12.3°C). Mellette in April experiences a low-temperature average of 36.9°F (2.7°C).Humidity
In April, the average relative humidity is 67%.Rainfall
In Mellette, during April, the rain falls for 10.2 days and regularly aggregates up to 1.65" (42mm) of precipitation. Throughout the year, there are 97.2 rainfall days, and 18.35" (466mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in Mellette, South Dakota. In April, it is snowing for 3.3 days. Throughout April, 2.32" (59mm) of snow is accumulated. In Mellette, during the entire year, snow falls for 54.8 days and aggregates up to 19.13" (486mm) of snow.Daylight
In Mellette, the average length of the day in April is 13h and 32min.On the first day of April in Mellette, sunrise is at 7:12 am and sunset at 8:02 pm. On the last day of the month, sunrise is at 6:22 am and sunset at 8:39 pm CDT.
Sunshine
In Mellette, the average sunshine in April is 7.7h.UV index
In Mellette, the average daily maximum UV index in April is 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: A typical high UV index of 3 in April suggests the following recommendations:
Act with care - Obligation to protect against skin and eye damage is highlighted. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Mellette, SD
- Average high temperature in April: 54.1°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (20.7°F).
- Average low temperature in April: 36.9°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (6.3°F).
Average pressure in April
Mellette, SD
- Average pressure in April: 29.95"Hg
The month with the highest atmospheric pressure is February (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in April
Mellette, SD
- Average wind speed in April: 10.6mph
The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (8.3mph).
Average humidity in April
Mellette, SD
- Average humidity in April: 67%
The month with the highest relative humidity is January (88%).
The months with the lowest relative humidity are August and September (60%).
Average rainfall in April
Mellette, SD
- Average rainfall in April: 1.65"
The wettest month (with the highest rainfall) is June (3.46").
The driest month (with the least rainfall) is January (0.59").
Average rainfall days in April
Mellette, SD
- Average rainfall days in April: 10.2 days
The month with the highest number of rainy days is June (15 days).
The month with the least rainy days is February (2 days).
Average snowfall in April
Mellette, SD
- Average snowfall in April: 2.32"
The month with the highest snowfall is January (3.82").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
Mellette, SD
- Average snowfall days in April: 3.3 days
The month with the highest number of snowfall days is January (13 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Mellette, SD
- Average daylight in April: 13h and 30min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in April: 7h and 42min
The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in April
Mellette, SD
- Average sunshine days in April: 15.5 days
The month with the most sunshine days is November (20.9 days).
The month with the least sunshine days is June (12.7 days).
Average UV index in April
Mellette, SD
- Average UV index in April: 3
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February and November (UV index 1).
Average cloud cover in April
Mellette, SD
- Average cloud cover in April: 46
The month with the most cloud cover is January (Cloud cover 57).
The months with the least cloud cover are July and August (Cloud cover 23).
Average visibility in April
Mellette, 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).
